56225565 has 48 divisors (see below), whose sum is σ = 107505216. Its totient is φ = 26956800.

The previous prime is 56225563. The next prime is 56225569. The reversal of 56225565 is 56552265.

It is not a de Polignac number, because 56225565 - 2¹ = 56225563 is a prime.

It is a super-2 number, since 2×56225565² = 6322628319138450, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56225563) 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 47 ways as a sum of consecutive naturals, for example, 47430 + ... + 48600.

It is an arithmetic number, because the mean of its divisors is an integer number (2239692).

Almost surely, 2^56225565 is an apocalyptic number.

56225565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56225565 is a deficient number, since it is larger than the sum of its proper divisors (51279651).

56225565 is a wasteful number, since it uses less digits than its factorization.

56225565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290 (or 1287 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 56225565 is about 7498.3708230522. The cubic root of 56225565 is about 383.0992273583.

The spelling of 56225565 in words is "fifty-six million, two hundred twenty-five thousand, five hundred sixty-five".