56156565 has 16 divisors (see below), whose sum is σ = 92279808. Its totient is φ = 29140416.

The previous prime is 56156563. The next prime is 56156567. The reversal of 56156565 is 56565165.

56156565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56156563) and next prime (56156567).

It is not a de Polignac number, because 56156565 - 2¹ = 56156563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56156563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50037 + ... + 51146.

It is an arithmetic number, because the mean of its divisors is an integer number (5767488).

Almost surely, 2^56156565 is an apocalyptic number.

It is an amenable number.

56156565 is a deficient number, since it is larger than the sum of its proper divisors (36123243).

56156565 is a wasteful number, since it uses less digits than its factorization.

56156565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101228.

The product of its digits is 135000, while the sum is 39.

The square root of 56156565 is about 7493.7684111534. The cubic root of 56156565 is about 382.9424501149.

The spelling of 56156565 in words is "fifty-six million, one hundred fifty-six thousand, five hundred sixty-five".