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55718529485 = 511143705897
BaseRepresentation
bin110011111001000101…
…010100100111001101
312022211010020120100012
4303321011110213031
51403102420420420
641332521243005
74011520454243
oct637105244715
9168733216305
1055718529485
11216a2725983
12a970033465
13533c727998
1429a7dd0793
1516b192ddc5
hexcf91549cd

55718529485 has 4 divisors (see below), whose sum is σ = 66862235388. Its totient is φ = 44574823584.

The previous prime is 55718529473. The next prime is 55718529499. The reversal of 55718529485 is 58492581755.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18853761481 + 36864768004 = 137309^2 + 192002^2 .

It is a cyclic number.

It is not a de Polignac number, because 55718529485 - 224 = 55701752269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5571852944 + ... + 5571852953.

It is an arithmetic number, because the mean of its divisors is an integer number (16715558847).

Almost surely, 255718529485 is an apocalyptic number.

It is an amenable number.

55718529485 is a deficient number, since it is larger than the sum of its proper divisors (11143705903).

55718529485 is a wasteful number, since it uses less digits than its factorization.

55718529485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11143705902.

The product of its digits is 20160000, while the sum is 59.

The spelling of 55718529485 in words is "fifty-five billion, seven hundred eighteen million, five hundred twenty-nine thousand, four hundred eighty-five".

Divisors: 1 5 11143705897 55718529485