55869328 has 20 divisors (see below), whose sum is σ = 108458460. Its totient is φ = 27880064.

The previous prime is 55869313. The next prime is 55869377. The reversal of 55869328 is 82396855.

It can be written as a sum of positive squares in 2 ways, for example, as 10549504 + 45319824 = 3248^2 + 6732^2 .

It is a super-2 number, since 2×55869328² = 6242763622343168, which contains 22 as substring.

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, 5778 + ... + 12046.

It is an arithmetic number, because the mean of its divisors is an integer number (5422923).

Almost surely, 2^55869328 is an apocalyptic number.

It is an amenable number.

55869328 is a deficient number, since it is larger than the sum of its proper divisors (52589132).

55869328 is a wasteful number, since it uses less digits than its factorization.

55869328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6834 (or 6828 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The square root of 55869328 is about 7474.5787841189. The cubic root of 55869328 is about 382.2884255755.

The spelling of 55869328 in words is "fifty-five million, eight hundred sixty-nine thousand, three hundred twenty-eight".