55670561172 has 24 divisors (see below), whose sum is σ = 144331084800. Its totient is φ = 18556853688.

The previous prime is 55670561153. The next prime is 55670561173. The reversal of 55670561172 is 27116507655.

55670561172 is a `hidden beast` number, since 5 + 5 + 6 + 70 + 561 + 17 + 2 = 666.

It is a super-2 number, since 2×55670561172² (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 (55670561173) 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 7 ways as a sum of consecutive naturals, for example, 257733972 + ... + 257734187.

It is an arithmetic number, because the mean of its divisors is an integer number (6013795200).

Almost surely, 2^55670561172 is an apocalyptic number.

It is an amenable number.

55670561172 is an abundant number, since it is smaller than the sum of its proper divisors (88660523628).

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

55670561172 is a wasteful number, since it uses less digits than its factorization.

55670561172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515468172 (or 515468164 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 45.

The spelling of 55670561172 in words is "fifty-five billion, six hundred seventy million, five hundred sixty-one thousand, one hundred seventy-two".