55870288 has 20 divisors (see below), whose sum is σ = 109555488. Its totient is φ = 27597920.

The previous prime is 55870273. The next prime is 55870291. The reversal of 55870288 is 88207855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19708 + ... + 22363.

Almost surely, 2^55870288 is an apocalyptic number.

It is an amenable number.

55870288 is a deficient number, since it is larger than the sum of its proper divisors (53685200).

55870288 is a wasteful number, since it uses less digits than its factorization.

55870288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42162 (or 42156 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 43.

The square root of 55870288 is about 7474.6430015085. The cubic root of 55870288 is about 382.2906151776.

The spelling of 55870288 in words is "fifty-five million, eight hundred seventy thousand, two hundred eighty-eight".