55404480 has 56 divisors (see below), whose sum is σ = 175912272. Its totient is φ = 14774272.

The previous prime is 55404473. The next prime is 55404491. The reversal of 55404480 is 8440455.

55404480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27897 + ... + 29816.

Almost surely, 2^55404480 is an apocalyptic number.

It is an amenable number.

55404480 is an abundant number, since it is smaller than the sum of its proper divisors (120507792).

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

55404480 is a wasteful number, since it uses less digits than its factorization.

55404480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57733 (or 57723 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 55404480 is about 7443.4185694478. The cubic root of 55404480 is about 381.2252235086.

The spelling of 55404480 in words is "fifty-five million, four hundred four thousand, four hundred eighty".