56157045 has 32 divisors (see below), whose sum is σ = 103617792. Its totient is φ = 25439232.

The previous prime is 56157029. The next prime is 56157061. The reversal of 56157045 is 54075165.

It is an interprime number because it is at equal distance from previous prime (56157029) and next prime (56157061).

It is not a de Polignac number, because 56157045 - 2⁴ = 56157029 is a prime.

It is a super-2 number, since 2×56157045² = 6307227406264050, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56156997 and 56157015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9499 + ... + 14231.

It is an arithmetic number, because the mean of its divisors is an integer number (3238056).

Almost surely, 2^56157045 is an apocalyptic number.

It is an amenable number.

56157045 is a deficient number, since it is larger than the sum of its proper divisors (47460747).

56157045 is a wasteful number, since it uses less digits than its factorization.

56157045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4861.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 56157045 is about 7493.8004376951. The cubic root of 56157045 is about 382.9435411827.

The spelling of 56157045 in words is "fifty-six million, one hundred fifty-seven thousand, forty-five".