56299491408 has 40 divisors (see below), whose sum is σ = 145516855968. Its totient is φ = 18756625792.

The previous prime is 56299491377. The next prime is 56299491421. The reversal of 56299491408 is 80419499265.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215991 + ... + 399062.

Almost surely, 2^56299491408 is an apocalyptic number.

It is an amenable number.

56299491408 is an abundant number, since it is smaller than the sum of its proper divisors (89217364560).

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

56299491408 is a wasteful number, since it uses less digits than its factorization.

56299491408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616971 (or 616965 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 57.

The spelling of 56299491408 in words is "fifty-six billion, two hundred ninety-nine million, four hundred ninety-one thousand, four hundred eight".