56985578 has 16 divisors (see below), whose sum is σ = 94196256. Its totient is φ = 25688880.

The previous prime is 56985571. The next prime is 56985583. The reversal of 56985578 is 87558965.

It is not an unprimeable number, because it can be changed into a prime (56985571) 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, 24368 + ... + 26603.

It is an arithmetic number, because the mean of its divisors is an integer number (5887266).

Almost surely, 2^56985578 is an apocalyptic number.

56985578 is a deficient number, since it is larger than the sum of its proper divisors (37210678).

56985578 is a wasteful number, since it uses less digits than its factorization.

56985578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51029.

The product of its digits is 3024000, while the sum is 53.

The square root of 56985578 is about 7548.8792545649. The cubic root of 56985578 is about 384.8176524464.

The spelling of 56985578 in words is "fifty-six million, nine hundred eighty-five thousand, five hundred seventy-eight".