55872288 has 48 divisors (see below), whose sum is σ = 162963360. Its totient is φ = 18623808.

The previous prime is 55872287. The next prime is 55872307. The reversal of 55872288 is 88227855.

55872288 is a `hidden beast` number, since 558 + 72 + 28 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (55872283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31470 + ... + 33197.

It is an arithmetic number, because the mean of its divisors is an integer number (3395070).

Almost surely, 2^55872288 is an apocalyptic number.

It is an amenable number.

55872288 is an abundant number, since it is smaller than the sum of its proper divisors (107091072).

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

55872288 is a wasteful number, since it uses less digits than its factorization.

55872288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64686 (or 64672 counting only the distinct ones).

The product of its digits is 358400, while the sum is 45.

The square root of 55872288 is about 7474.7767859649. The cubic root of 55872288 is about 382.2951767680.

It can be divided in two parts, 5587 and 2288, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 55872288 in words is "fifty-five million, eight hundred seventy-two thousand, two hundred eighty-eight".