56510055157 has 8 divisors (see below), whose sum is σ = 57034893080. Its totient is φ = 55985333760.

The previous prime is 56510055143. The next prime is 56510055163. The reversal of 56510055157 is 75155001565.

It can be written as a sum of positive squares in 4 ways, for example, as 798006001 + 55712049156 = 28249^2 + 236034^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56510055157 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 (56510055257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174657 + ... + 1221817.

It is an arithmetic number, because the mean of its divisors is an integer number (7129361635).

Almost surely, 2^56510055157 is an apocalyptic number.

It is an amenable number.

56510055157 is a deficient number, since it is larger than the sum of its proper divisors (524837923).

56510055157 is a wasteful number, since it uses less digits than its factorization.

56510055157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58263.

The product of its (nonzero) digits is 131250, while the sum is 40.

The spelling of 56510055157 in words is "fifty-six billion, five hundred ten million, fifty-five thousand, one hundred fifty-seven".