55912320 has 192 divisors, whose sum is σ = 204787440. Its totient is φ = 14008320.

The previous prime is 55912301. The next prime is 55912349. The reversal of 55912320 is 2321955.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97635 + ... + 98205.

Almost surely, 2^55912320 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 55912320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102393720).

55912320 is an abundant number, since it is smaller than the sum of its proper divisors (148875120).

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

55912320 is a wasteful number, since it uses less digits than its factorization.

55912320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 55912320 is about 7477.4541121962. The cubic root of 55912320 is about 382.3864586744.

The spelling of 55912320 in words is "fifty-five million, nine hundred twelve thousand, three hundred twenty".