56690578 has 8 divisors (see below), whose sum is σ = 97183872. Its totient is φ = 24295956.

The previous prime is 56690551. The next prime is 56690581. The reversal of 56690578 is 87509665.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2024650 + ... + 2024677.

It is an arithmetic number, because the mean of its divisors is an integer number (12147984).

Almost surely, 2^56690578 is an apocalyptic number.

56690578 is a deficient number, since it is larger than the sum of its proper divisors (40493294).

56690578 is a wasteful number, since it uses less digits than its factorization.

56690578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4049336.

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 56690578 is about 7529.3145770382. The cubic root of 56690578 is about 384.1524685698.

The spelling of 56690578 in words is "fifty-six million, six hundred ninety thousand, five hundred seventy-eight".