56505563 has 8 divisors (see below), whose sum is σ = 60318720. Its totient is φ = 52776360.

The previous prime is 56505557. The next prime is 56505607. The reversal of 56505563 is 36550565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56505563 - 2¹⁴ = 56489179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56504563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19595 + ... + 22292.

It is an arithmetic number, because the mean of its divisors is an integer number (7539840).

Almost surely, 2^56505563 is an apocalyptic number.

56505563 is a deficient number, since it is larger than the sum of its proper divisors (3813157).

56505563 is a wasteful number, since it uses less digits than its factorization.

56505563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41977.

The product of its (nonzero) digits is 67500, while the sum is 35.

The square root of 56505563 is about 7517.0182253338. The cubic root of 56505563 is about 383.7341072899.

The spelling of 56505563 in words is "fifty-six million, five hundred five thousand, five hundred sixty-three".