56217065 has 4 divisors (see below), whose sum is σ = 67460484. Its totient is φ = 44973648.

The previous prime is 56217059. The next prime is 56217071. The reversal of 56217065 is 56071265.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (56217059) and next prime (56217071).

It can be written as a sum of positive squares in 2 ways, for example, as 32752729 + 23464336 = 5723^2 + 4844^2 .

It is a cyclic number.

It is not a de Polignac number, because 56217065 - 2¹² = 56212969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5621702 + ... + 5621711.

It is an arithmetic number, because the mean of its divisors is an integer number (16865121).

Almost surely, 2^56217065 is an apocalyptic number.

It is an amenable number.

56217065 is a deficient number, since it is larger than the sum of its proper divisors (11243419).

56217065 is a wasteful number, since it uses less digits than its factorization.

56217065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11243418.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 56217065 is about 7497.8040118424. The cubic root of 56217065 is about 383.0799211492.

The spelling of 56217065 in words is "fifty-six million, two hundred seventeen thousand, sixty-five".