56712961 has 4 divisors (see below), whose sum is σ = 56933892. Its totient is φ = 56492032.

The previous prime is 56712941. The next prime is 56712977. The reversal of 56712961 is 16921765.

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 34292736 + 22420225 = 5856^2 + 4735^2 .

It is a cyclic number.

It is not a de Polignac number, because 56712961 - 2²¹ = 54615809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56712961.

It is not an unprimeable number, because it can be changed into a prime (56712941) 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, 110080 + ... + 110593.

It is an arithmetic number, because the mean of its divisors is an integer number (14233473).

Almost surely, 2^56712961 is an apocalyptic number.

It is an amenable number.

56712961 is a deficient number, since it is larger than the sum of its proper divisors (220931).

56712961 is a wasteful number, since it uses less digits than its factorization.

56712961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220930.

The product of its digits is 22680, while the sum is 37.

The square root of 56712961 is about 7530.8008206299. The cubic root of 56712961 is about 384.2030199055.

The spelling of 56712961 in words is "fifty-six million, seven hundred twelve thousand, nine hundred sixty-one".