56516965 has 8 divisors (see below), whose sum is σ = 68749848. Its totient is φ = 44593920.

The previous prime is 56516951. The next prime is 56516981. The reversal of 56516965 is 56961565.

It can be written as a sum of positive squares in 4 ways, for example, as 910116 + 55606849 = 954^2 + 7457^2 .

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

It is not a de Polignac number, because 56516965 - 2¹¹ = 56514917 is a prime.

It is a super-2 number, since 2×56516965² = 6388334665622450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77056 + ... + 77785.

It is an arithmetic number, because the mean of its divisors is an integer number (8593731).

Almost surely, 2^56516965 is an apocalyptic number.

It is an amenable number.

56516965 is a deficient number, since it is larger than the sum of its proper divisors (12232883).

56516965 is a wasteful number, since it uses less digits than its factorization.

56516965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154919.

The product of its digits is 243000, while the sum is 43.

The square root of 56516965 is about 7517.7765995007. The cubic root of 56516965 is about 383.7599162062.

The spelling of 56516965 in words is "fifty-six million, five hundred sixteen thousand, nine hundred sixty-five".