56688761 has 16 divisors (see below), whose sum is σ = 63504000. Its totient is φ = 50289408.

The previous prime is 56688757. The next prime is 56688811. The reversal of 56688761 is 16788665.

It is a cyclic number.

It is not a de Polignac number, because 56688761 - 2² = 56688757 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56688361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94340 + ... + 94938.

It is an arithmetic number, because the mean of its divisors is an integer number (3969000).

Almost surely, 2^56688761 is an apocalyptic number.

It is an amenable number.

56688761 is a deficient number, since it is larger than the sum of its proper divisors (6815239).

56688761 is a wasteful number, since it uses less digits than its factorization.

56688761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928.

The product of its digits is 483840, while the sum is 47.

The square root of 56688761 is about 7529.1939143576. The cubic root of 56688761 is about 384.1483643458.

The spelling of 56688761 in words is "fifty-six million, six hundred eighty-eight thousand, seven hundred sixty-one".