55786408 has 16 divisors (see below), whose sum is σ = 109147680. Its totient is φ = 26680368.

The previous prime is 55786307. The next prime is 55786427. The reversal of 55786408 is 80468755.

It is a super-2 number, since 2×55786408² = 6224246635084928, 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, 151410 + ... + 151777.

It is an arithmetic number, because the mean of its divisors is an integer number (6821730).

Almost surely, 2^55786408 is an apocalyptic number.

It is an amenable number.

55786408 is a deficient number, since it is larger than the sum of its proper divisors (53361272).

55786408 is a wasteful number, since it uses less digits than its factorization.

55786408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303216 (or 303212 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 55786408 is about 7469.0299236246. The cubic root of 55786408 is about 382.0992039709.

The spelling of 55786408 in words is "fifty-five million, seven hundred eighty-six thousand, four hundred eight".