55599264 has 192 divisors, whose sum is σ = 192326400. Its totient is φ = 15289344.

The previous prime is 55599253. The next prime is 55599281. The reversal of 55599264 is 46299555.

It is a happy number.

55599264 is a `hidden beast` number, since 5 + 559 + 92 + 6 + 4 = 666.

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, 175234 + ... + 175550.

It is an arithmetic number, because the mean of its divisors is an integer number (1001700).

Almost surely, 2^55599264 is an apocalyptic number.

55599264 is a gapful number since it is divisible by the number (54) 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 55599264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96163200).

55599264 is an abundant number, since it is smaller than the sum of its proper divisors (136727136).

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

55599264 is a wasteful number, since it uses less digits than its factorization.

55599264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 358 counting only the distinct ones).

The product of its digits is 486000, while the sum is 45.

The square root of 55599264 is about 7456.4914001157. The cubic root of 55599264 is about 381.6714553109.

The spelling of 55599264 in words is "fifty-five million, five hundred ninety-nine thousand, two hundred sixty-four".