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55550070765 = 3257199281549
BaseRepresentation
bin110011101111000010…
…101100111111101101
312022101101020222102100
4303233002230333231
51402231304231030
641304102445313
74004403545040
oct635702547755
9168341228370
1055550070765
11216166263a2
12a923733839
135313865077
14298d89cc57
1516a1c55360
hexcef0acfed

55550070765 has 48 divisors (see below), whose sum is σ = 115833744000. Its totient is φ = 24057772416.

The previous prime is 55550070761. The next prime is 55550070883. The reversal of 55550070765 is 56707005555.

55550070765 is a `hidden beast` number, since 5 + 5 + 5 + 500 + 70 + 76 + 5 = 666.

It is not a de Polignac number, because 55550070765 - 22 = 55550070761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55550070765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55550070761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4634790 + ... + 4646759.

It is an arithmetic number, because the mean of its divisors is an integer number (2413203000).

Almost surely, 255550070765 is an apocalyptic number.

It is an amenable number.

55550070765 is an abundant number, since it is smaller than the sum of its proper divisors (60283673235).

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

55550070765 is a wasteful number, since it uses less digits than its factorization.

55550070765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9281586 (or 9281583 counting only the distinct ones).

The product of its (nonzero) digits is 918750, while the sum is 45.

The spelling of 55550070765 in words is "fifty-five billion, five hundred fifty million, seventy thousand, seven hundred sixty-five".

Divisors: 1 3 5 7 9 15 19 21 35 45 57 63 95 105 133 171 285 315 399 665 855 1197 1995 5985 9281549 27844647 46407745 64970843 83533941 139223235 176349431 194912529 324854215 417669705 529048293 584737587 881747155 974562645 1234446017 1587144879 2645241465 2923687935 3703338051 6172230085 7935724395 11110014153 18516690255 55550070765