55748400 has 60 divisors (see below), whose sum is σ = 178584552. Its totient is φ = 14865920.

The previous prime is 55748393. The next prime is 55748417. The reversal of 55748400 is 484755.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22029 + ... + 24428.

Almost surely, 2^55748400 is an apocalyptic number.

55748400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55748400 is an abundant number, since it is smaller than the sum of its proper divisors (122836152).

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

55748400 is a wasteful number, since it uses less digits than its factorization.

55748400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46478 (or 46467 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 55748400 is about 7466.4851168405. The cubic root of 55748400 is about 382.0124078826.

The spelling of 55748400 in words is "fifty-five million, seven hundred forty-eight thousand, four hundred".