56727761 has 12 divisors (see below), whose sum is σ = 58850736. Its totient is φ = 54661200.

The previous prime is 56727739. The next prime is 56727779. The reversal of 56727761 is 16772765.

It is not a de Polignac number, because 56727761 - 2¹⁴ = 56711377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56727701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 561611 + ... + 561711.

It is an arithmetic number, because the mean of its divisors is an integer number (4904228).

Almost surely, 2^56727761 is an apocalyptic number.

It is an amenable number.

56727761 is a deficient number, since it is larger than the sum of its proper divisors (2122975).

56727761 is an equidigital number, since it uses as much as digits as its factorization.

56727761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 251 counting only the distinct ones).

The product of its digits is 123480, while the sum is 41.

The square root of 56727761 is about 7531.7833877509. The cubic root of 56727761 is about 384.2364379581.

The spelling of 56727761 in words is "fifty-six million, seven hundred twenty-seven thousand, seven hundred sixty-one".