56578379 has 16 divisors (see below), whose sum is σ = 68619264. Its totient is φ = 45943200.

The previous prime is 56578369. The next prime is 56578381. The reversal of 56578379 is 97387565.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 56578379 - 2²⁴ = 39801163 is a prime.

It is a super-2 number, since 2×56578379² = 6402225940535282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56578339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1949 + ... + 10814.

It is an arithmetic number, because the mean of its divisors is an integer number (4288704).

Almost surely, 2^56578379 is an apocalyptic number.

56578379 is a deficient number, since it is larger than the sum of its proper divisors (12040885).

56578379 is a wasteful number, since it uses less digits than its factorization.

56578379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12818.

The product of its digits is 1587600, while the sum is 50.

The square root of 56578379 is about 7521.8600758057. The cubic root of 56578379 is about 383.8988697626.

The spelling of 56578379 in words is "fifty-six million, five hundred seventy-eight thousand, three hundred seventy-nine".