56578863 has 16 divisors (see below), whose sum is σ = 82423296. Its totient is φ = 34237440.

The previous prime is 56578861. The next prime is 56578901. The reversal of 56578863 is 36887565.

It is not a de Polignac number, because 56578863 - 2¹ = 56578861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56578861) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 37306 + ... + 38792.

It is an arithmetic number, because the mean of its divisors is an integer number (5151456).

Almost surely, 2^56578863 is an apocalyptic number.

56578863 is a deficient number, since it is larger than the sum of its proper divisors (25844433).

56578863 is a wasteful number, since it uses less digits than its factorization.

56578863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2654.

The product of its digits is 1209600, while the sum is 48.

The square root of 56578863 is about 7521.8922486300. The cubic root of 56578863 is about 383.8999644477.

The spelling of 56578863 in words is "fifty-six million, five hundred seventy-eight thousand, eight hundred sixty-three".