56975087 has 4 divisors (see below), whose sum is σ = 61357800. Its totient is φ = 52592376.

The previous prime is 56975081. The next prime is 56975099. The reversal of 56975087 is 78057965.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56975087 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 (56975081) 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, 2191337 + ... + 2191362.

It is an arithmetic number, because the mean of its divisors is an integer number (15339450).

Almost surely, 2^56975087 is an apocalyptic number.

56975087 is a deficient number, since it is larger than the sum of its proper divisors (4382713).

56975087 is a wasteful number, since it uses less digits than its factorization.

56975087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4382712.

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 56975087 is about 7548.1843512198. The cubic root of 56975087 is about 384.7940361215.

The spelling of 56975087 in words is "fifty-six million, nine hundred seventy-five thousand, eighty-seven".