56000549990 has 32 divisors (see below), whose sum is σ = 125673963264. Its totient is φ = 17454716640.

The previous prime is 56000549989. The next prime is 56000550019. The reversal of 56000549990 is 9994500065.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36363224 + ... + 36364763.

It is an arithmetic number, because the mean of its divisors is an integer number (3927311352).

Almost surely, 2^56000549990 is an apocalyptic number.

56000549990 is an abundant number, since it is smaller than the sum of its proper divisors (69673413274).

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

56000549990 is a wasteful number, since it uses less digits than its factorization.

56000549990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72728012.

The product of its (nonzero) digits is 437400, while the sum is 47.

The spelling of 56000549990 in words is "fifty-six billion, five hundred forty-nine thousand, nine hundred ninety".