56512757 has 8 divisors (see below), whose sum is σ = 64747200. Its totient is φ = 48318624.

The previous prime is 56512747. The next prime is 56512759. The reversal of 56512757 is 75721565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56512757 - 2⁴ = 56512741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56512757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56512759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7007 + ... + 12732.

It is an arithmetic number, because the mean of its divisors is an integer number (8093400).

Almost surely, 2^56512757 is an apocalyptic number.

It is an amenable number.

56512757 is a deficient number, since it is larger than the sum of its proper divisors (8234443).

56512757 is a wasteful number, since it uses less digits than its factorization.

56512757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20155.

The product of its digits is 73500, while the sum is 38.

The square root of 56512757 is about 7517.4967243092. The cubic root of 56512757 is about 383.7503916218.

The spelling of 56512757 in words is "fifty-six million, five hundred twelve thousand, seven hundred fifty-seven".