55518748 has 12 divisors (see below), whose sum is σ = 97229160. Its totient is φ = 27738992.

The previous prime is 55518733. The next prime is 55518761. The reversal of 55518748 is 84781555.

55518748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 2190 + ... + 10762.

It is an arithmetic number, because the mean of its divisors is an integer number (8102430).

Almost surely, 2^55518748 is an apocalyptic number.

It is an amenable number.

55518748 is a deficient number, since it is larger than the sum of its proper divisors (41710412).

55518748 is a wasteful number, since it uses less digits than its factorization.

55518748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10196 (or 10194 counting only the distinct ones).

The product of its digits is 224000, while the sum is 43.

The square root of 55518748 is about 7451.0903900033. The cubic root of 55518748 is about 381.4871273012.

The spelling of 55518748 in words is "fifty-five million, five hundred eighteen thousand, seven hundred forty-eight".