Search a number
-
+
55550060055 = 32572149169079
BaseRepresentation
bin110011101111000010…
…101010011000010111
312022101101020102201200
4303233002222120113
51402231303410210
641304102323543
74004403501600
oct635702523027
9168341212650
1055550060055
1121616619346
12a9237295b3
135313860229
14298d898da7
1516a1c520c0
hexcef0aa617

55550060055 has 72 divisors (see below), whose sum is σ = 112759452000. Its totient is φ = 25223732352.

The previous prime is 55550060021. The next prime is 55550060057. The reversal of 55550060055 is 55006005555.

55550060055 is a `hidden beast` number, since 55 + 550 + 0 + 6 + 0 + 0 + 55 = 666.

It is not a de Polignac number, because 55550060055 - 213 = 55550051863 is a prime.

It is a super-2 number, since 2×555500600552 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55550060057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 244006 + ... + 413084.

It is an arithmetic number, because the mean of its divisors is an integer number (1566103500).

Almost surely, 255550060055 is an apocalyptic number.

55550060055 is an abundant number, since it is smaller than the sum of its proper divisors (57209391945).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55550060055 is a wasteful number, since it uses less digits than its factorization.

55550060055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169253 (or 169243 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 36.

The spelling of 55550060055 in words is "fifty-five billion, five hundred fifty million, sixty thousand, fifty-five".

Divisors: 1 3 5 7 9 15 21 35 45 49 63 105 147 149 245 315 441 447 735 745 1043 1341 2205 2235 3129 5215 6705 7301 9387 15645 21903 36505 46935 65709 109515 169079 328545 507237 845395 1183553 1521711 2536185 3550659 5917765 7608555 8284871 10651977 17753295 24854613 25192771 41424355 53259885 74563839 75578313 124273065 125963855 176349397 226734939 372819195 377891565 529048191 881746985 1133674695 1234445779 1587144573 2645240955 3703337337 6172228895 7935722865 11110012011 18516686685 55550060055