56310157 has 4 divisors (see below), whose sum is σ = 56343456. Its totient is φ = 56276860.

The previous prime is 56310139. The next prime is 56310251. The reversal of 56310157 is 75101365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75101365 = 5 ⋅15020273.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56310157 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 (56310557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13969 + ... + 17542.

It is an arithmetic number, because the mean of its divisors is an integer number (14085864).

Almost surely, 2^56310157 is an apocalyptic number.

It is an amenable number.

56310157 is a deficient number, since it is larger than the sum of its proper divisors (33299).

56310157 is a wasteful number, since it uses less digits than its factorization.

56310157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33298.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 56310157 is about 7504.0093949835. The cubic root of 56310157 is about 383.2912567973.

The spelling of 56310157 in words is "fifty-six million, three hundred ten thousand, one hundred fifty-seven".