55748664 has 48 divisors (see below), whose sum is σ = 155862720. Its totient is φ = 17982720.

The previous prime is 55748657. The next prime is 55748681. The reversal of 55748664 is 46684755.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10257 + ... + 14720.

It is an arithmetic number, because the mean of its divisors is an integer number (3247140).

Almost surely, 2^55748664 is an apocalyptic number.

It is an amenable number.

55748664 is an abundant number, since it is smaller than the sum of its proper divisors (100114056).

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

55748664 is a wasteful number, since it uses less digits than its factorization.

55748664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25020 (or 25013 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 55748664 is about 7466.5027958208. The cubic root of 55748664 is about 382.0130108961.

The spelling of 55748664 in words is "fifty-five million, seven hundred forty-eight thousand, six hundred sixty-four".