56157345 has 36 divisors (see below), whose sum is σ = 99159060. Its totient is φ = 29398464.

The previous prime is 56157317. The next prime is 56157359. The reversal of 56157345 is 54375165.

56157345 is a `hidden beast` number, since 5 + 615 + 7 + 34 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29778849 + 26378496 = 5457^2 + 5136^2 .

It is not a de Polignac number, because 56157345 - 2⁶ = 56157281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 515151 + ... + 515259.

Almost surely, 2^56157345 is an apocalyptic number.

It is an amenable number.

56157345 is a deficient number, since it is larger than the sum of its proper divisors (43001715).

56157345 is a wasteful number, since it uses less digits than its factorization.

56157345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 224 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 56157345 is about 7493.8204542143. The cubic root of 56157345 is about 382.9442230969.

The spelling of 56157345 in words is "fifty-six million, one hundred fifty-seven thousand, three hundred forty-five".