55613712 has 160 divisors (see below), whose sum is σ = 183988224. Its totient is φ = 14054400.

The previous prime is 55613683. The next prime is 55613743. The reversal of 55613712 is 21731655.

It is a self number, because there is not a number n which added to its sum of digits gives 55613712.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151353 + ... + 151719.

Almost surely, 2^55613712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55613712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91994112).

55613712 is an abundant number, since it is smaller than the sum of its proper divisors (128374512).

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

55613712 is a wasteful number, since it uses less digits than its factorization.

55613712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 431 counting only the distinct ones).

The product of its digits is 6300, while the sum is 30.

The square root of 55613712 is about 7457.4601574531. The cubic root of 55613712 is about 381.7045127725.

The spelling of 55613712 in words is "fifty-five million, six hundred thirteen thousand, seven hundred twelve".