56653172157 has 32 divisors (see below), whose sum is σ = 80377792000. Its totient is φ = 35393008320.

The previous prime is 56653172141. The next prime is 56653172179. The reversal of 56653172157 is 75127135665.

It is not a de Polignac number, because 56653172157 - 2⁴ = 56653172141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56653172057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3838482 + ... + 3853212.

It is an arithmetic number, because the mean of its divisors is an integer number (2511806000).

Almost surely, 2^56653172157 is an apocalyptic number.

56653172157 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

56653172157 is a deficient number, since it is larger than the sum of its proper divisors (23724619843).

56653172157 is a wasteful number, since it uses less digits than its factorization.

56653172157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15481.

The product of its digits is 1323000, while the sum is 48.

The spelling of 56653172157 in words is "fifty-six billion, six hundred fifty-three million, one hundred seventy-two thousand, one hundred fifty-seven".