56235256616 has 128 divisors (see below), whose sum is σ = 136307957760. Its totient is φ = 21108038400.

The previous prime is 56235256603. The next prime is 56235256643. The reversal of 56235256616 is 61665253265.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4328306 + ... + 4341278.

It is an arithmetic number, because the mean of its divisors is an integer number (1064905920).

Almost surely, 2^56235256616 is an apocalyptic number.

56235256616 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56235256616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68153978880).

56235256616 is an abundant number, since it is smaller than the sum of its proper divisors (80072701144).

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

56235256616 is a wasteful number, since it uses less digits than its factorization.

56235256616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13255 (or 13251 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 47.

The spelling of 56235256616 in words is "fifty-six billion, two hundred thirty-five million, two hundred fifty-six thousand, six hundred sixteen".