56306565 has 48 divisors (see below), whose sum is σ = 114162048. Its totient is φ = 25135488.

The previous prime is 56306561. The next prime is 56306587. The reversal of 56306565 is 56560365.

It is a happy number.

It is not a de Polignac number, because 56306565 - 2² = 56306561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56306561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11467 + ... + 15623.

It is an arithmetic number, because the mean of its divisors is an integer number (2378376).

Almost surely, 2^56306565 is an apocalyptic number.

It is an amenable number.

56306565 is an abundant number, since it is smaller than the sum of its proper divisors (57855483).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56306565 is a wasteful number, since it uses less digits than its factorization.

56306565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218 (or 4215 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 56306565 is about 7503.7700524470. The cubic root of 56306565 is about 383.2831066308.

The spelling of 56306565 in words is "fifty-six million, three hundred six thousand, five hundred sixty-five".