56761057 has 4 divisors (see below), whose sum is σ = 57074836. Its totient is φ = 56447280.

The previous prime is 56760973. The next prime is 56761063. The reversal of 56761057 is 75016765.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3748096 + 53012961 = 1936^2 + 7281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56761057 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a zygodrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (56761087) 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, 156618 + ... + 156979.

It is an arithmetic number, because the mean of its divisors is an integer number (14268709).

Almost surely, 2^56761057 is an apocalyptic number.

It is an amenable number.

56761057 is a deficient number, since it is larger than the sum of its proper divisors (313779).

56761057 is a wasteful number, since it uses less digits than its factorization.

56761057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313778.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 56761057 is about 7533.9934297821. The cubic root of 56761057 is about 384.3115983028.

The spelling of 56761057 in words is "fifty-six million, seven hundred sixty-one thousand, fifty-seven".