56553585 has 24 divisors (see below), whose sum is σ = 99462720. Its totient is φ = 27419040.

The previous prime is 56553571. The next prime is 56553587. The reversal of 56553585 is 58535565.

It is not a de Polignac number, because 56553585 - 2⁴ = 56553569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56553587) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13765 + ... + 17394.

It is an arithmetic number, because the mean of its divisors is an integer number (4144280).

Almost surely, 2^56553585 is an apocalyptic number.

56553585 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56553585 is a deficient number, since it is larger than the sum of its proper divisors (42909135).

56553585 is a wasteful number, since it uses less digits than its factorization.

56553585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31189 (or 31178 counting only the distinct ones).

The product of its digits is 450000, while the sum is 42.

The square root of 56553585 is about 7520.2117656353. The cubic root of 56553585 is about 383.8427836777.

The spelling of 56553585 in words is "fifty-six million, five hundred fifty-three thousand, five hundred eighty-five".