55255312 has 20 divisors (see below), whose sum is σ = 122351296. Its totient is φ = 23680800.

The previous prime is 55255307. The next prime is 55255349. The reversal of 55255312 is 21355255.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 246564 + ... + 246787.

Almost surely, 2^55255312 is an apocalyptic number.

It is an amenable number.

55255312 is an abundant number, since it is smaller than the sum of its proper divisors (67095984).

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

55255312 is a wasteful number, since it uses less digits than its factorization.

55255312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493366 (or 493360 counting only the distinct ones).

The product of its digits is 7500, while the sum is 28.

The square root of 55255312 is about 7433.3916888591. The cubic root of 55255312 is about 380.8827860050.

The spelling of 55255312 in words is "fifty-five million, two hundred fifty-five thousand, three hundred twelve".