56639458 has 8 divisors (see below), whose sum is σ = 84994560. Its totient is φ = 28307940.

The previous prime is 56639447. The next prime is 56639467. The reversal of 56639458 is 85493665.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2503 + ... + 10933.

It is an arithmetic number, because the mean of its divisors is an integer number (10624320).

Almost surely, 2^56639458 is an apocalyptic number.

56639458 is a deficient number, since it is larger than the sum of its proper divisors (28355102).

56639458 is a wasteful number, since it uses less digits than its factorization.

56639458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11792.

The product of its digits is 777600, while the sum is 46.

The square root of 56639458 is about 7525.9190800858. The cubic root of 56639458 is about 384.0369656616.

The spelling of 56639458 in words is "fifty-six million, six hundred thirty-nine thousand, four hundred fifty-eight".