56730537 has 24 divisors (see below), whose sum is σ = 85577856. Its totient is φ = 37554192.

The previous prime is 56730533. The next prime is 56730571. The reversal of 56730537 is 73503765.

56730537 is a `hidden beast` number, since 56 + 73 + 0 + 537 = 666.

56730537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56730537 - 2² = 56730533 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (56730533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37408 + ... + 38894.

It is an arithmetic number, because the mean of its divisors is an integer number (3565744).

Almost surely, 2^56730537 is an apocalyptic number.

It is an amenable number.

56730537 is a deficient number, since it is larger than the sum of its proper divisors (28847319).

56730537 is a wasteful number, since it uses less digits than its factorization.

56730537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659 (or 1647 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 36.

The square root of 56730537 is about 7531.9676711999. The cubic root of 56730537 is about 384.2427054535.

The spelling of 56730537 in words is "fifty-six million, seven hundred thirty thousand, five hundred thirty-seven".