56515998898 has 8 divisors (see below), whose sum is σ = 84775243392. Its totient is φ = 28257584436.

The previous prime is 56515998893. The next prime is 56515998907. The reversal of 56515998898 is 89889951565.

56515998898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 56515998898.

It is not an unprimeable number, because it can be changed into a prime (56515998893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7111 + ... + 336277.

It is an arithmetic number, because the mean of its divisors is an integer number (10596905424).

Almost surely, 2^56515998898 is an apocalyptic number.

56515998898 is a deficient number, since it is larger than the sum of its proper divisors (28259244494).

56515998898 is a wasteful number, since it uses less digits than its factorization.

56515998898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415016.

The product of its digits is 279936000, while the sum is 73.

The spelling of 56515998898 in words is "fifty-six billion, five hundred fifteen million, nine hundred ninety-eight thousand, eight hundred ninety-eight".