56563965 has 24 divisors (see below), whose sum is σ = 98760480. Its totient is φ = 29947104.

The previous prime is 56563957. The next prime is 56563973. The reversal of 56563965 is 56936565.

56563965 is a `hidden beast` number, since 5 + 6 + 5 + 639 + 6 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (56563957) and next prime (56563973).

It is not a de Polignac number, because 56563965 - 2³ = 56563957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 56563965.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1734 + ... + 10776.

It is an arithmetic number, because the mean of its divisors is an integer number (4115020).

Almost surely, 2^56563965 is an apocalyptic number.

It is an amenable number.

56563965 is a deficient number, since it is larger than the sum of its proper divisors (42196515).

56563965 is a wasteful number, since it uses less digits than its factorization.

56563965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9193 (or 9190 counting only the distinct ones).

The product of its digits is 729000, while the sum is 45.

The square root of 56563965 is about 7520.9018741106. The cubic root of 56563965 is about 383.8662660933.

The spelling of 56563965 in words is "fifty-six million, five hundred sixty-three thousand, nine hundred sixty-five".