56638002 has 8 divisors (see below), whose sum is σ = 113276016. Its totient is φ = 18879332.

The previous prime is 56637979. The next prime is 56638003. The reversal of 56638002 is 20083665.

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

56638002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (56638003) by changing a digit.

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, 4719828 + ... + 4719839.

It is an arithmetic number, because the mean of its divisors is an integer number (14159502).

Almost surely, 2^56638002 is an apocalyptic number.

56638002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56638002 is a wasteful number, since it uses less digits than its factorization.

56638002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9439672.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 56638002 is about 7525.8223470927. The cubic root of 56638002 is about 384.0336748897.

The spelling of 56638002 in words is "fifty-six million, six hundred thirty-eight thousand, two".