56099916 has 36 divisors (see below), whose sum is σ = 143757432. Its totient is φ = 18442944.

The previous prime is 56099909. The next prime is 56099941. The reversal of 56099916 is 61999065.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8046 + ... + 13301.

It is an arithmetic number, because the mean of its divisors is an integer number (3993262).

Almost surely, 2^56099916 is an apocalyptic number.

It is an amenable number.

56099916 is an abundant number, since it is smaller than the sum of its proper divisors (87657516).

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

56099916 is a wasteful number, since it uses less digits than its factorization.

56099916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21430 (or 21425 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 56099916 is about 7489.9877169459. The cubic root of 56099916 is about 382.8136399722.

The spelling of 56099916 in words is "fifty-six million, ninety-nine thousand, nine hundred sixteen".