55659312 has 100 divisors (see below), whose sum is σ = 163753656. Its totient is φ = 18247680.

The previous prime is 55659299. The next prime is 55659319. The reversal of 55659312 is 21395655.

55659312 is a `hidden beast` number, since 5 + 56 + 593 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55659319) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 86512 + ... + 87152.

Almost surely, 2^55659312 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 55659312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81876828).

55659312 is an abundant number, since it is smaller than the sum of its proper divisors (108094344).

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

55659312 is a wasteful number, since it uses less digits than its factorization.

55659312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 713 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 55659312 is about 7460.5168721745. The cubic root of 55659312 is about 381.8088094174.

The spelling of 55659312 in words is "fifty-five million, six hundred fifty-nine thousand, three hundred twelve".