56867565 has 16 divisors (see below), whose sum is σ = 91371456. Its totient is φ = 30201600.

The previous prime is 56867561. The next prime is 56867599. The reversal of 56867565 is 56576865.

It is not a de Polignac number, because 56867565 - 2² = 56867561 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56867561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4251 + ... + 11480.

It is an arithmetic number, because the mean of its divisors is an integer number (5710716).

Almost surely, 2^56867565 is an apocalyptic number.

It is an amenable number.

56867565 is a deficient number, since it is larger than the sum of its proper divisors (34503891).

56867565 is a wasteful number, since it uses less digits than its factorization.

56867565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15980.

The product of its digits is 1512000, while the sum is 48.

The square root of 56867565 is about 7541.0586126883. The cubic root of 56867565 is about 384.5518257075.

The spelling of 56867565 in words is "fifty-six million, eight hundred sixty-seven thousand, five hundred sixty-five".