55538016 has 48 divisors (see below), whose sum is σ = 150822000. Its totient is φ = 17873408.

The previous prime is 55538003. The next prime is 55538059. The reversal of 55538016 is 61083555.

55538016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

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, 7191 + ... + 12758.

It is an arithmetic number, because the mean of its divisors is an integer number (3142125).

Almost surely, 2^55538016 is an apocalyptic number.

It is an amenable number.

55538016 is an abundant number, since it is smaller than the sum of its proper divisors (95283984).

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

55538016 is a wasteful number, since it uses less digits than its factorization.

55538016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19991 (or 19983 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 55538016 is about 7452.3832429633. The cubic root of 55538016 is about 381.5312543997.

The spelling of 55538016 in words is "fifty-five million, five hundred thirty-eight thousand, sixteen".