56521702170132 has 24 divisors (see below), whose sum is σ = 132574463734272. Its totient is φ = 18741925675200.

The previous prime is 56521702170029. The next prime is 56521702170161. The reversal of 56521702170132 is 23107120712565.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12330211969 + ... + 12330216552.

It is an arithmetic number, because the mean of its divisors is an integer number (5523935988928).

Almost surely, 2^{56521702170132} is an apocalyptic number.

It is an amenable number.

56521702170132 is an abundant number, since it is smaller than the sum of its proper divisors (76052761564140).

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

56521702170132 is a wasteful number, since it uses less digits than its factorization.

56521702170132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24660428719 (or 24660428717 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 42.

Adding to 56521702170132 its reverse (23107120712565), we get a palindrome (79628822882697).

The spelling of 56521702170132 in words is "fifty-six trillion, five hundred twenty-one billion, seven hundred two million, one hundred seventy thousand, one hundred thirty-two".