55437120 has 84 divisors (see below), whose sum is σ = 190690500. Its totient is φ = 14782464.

The previous prime is 55437113. The next prime is 55437163. The reversal of 55437120 is 2173455.

It is a happy number.

55437120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 32626944 + 22810176 = 5712^2 + 4776^2 .

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 11 ways as a sum of consecutive naturals, for example, 6745 + ... + 12504.

It is an arithmetic number, because the mean of its divisors is an integer number (2270125).

Almost surely, 2^55437120 is an apocalyptic number.

It is an amenable number.

55437120 is an abundant number, since it is smaller than the sum of its proper divisors (135253380).

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

55437120 is a wasteful number, since it uses less digits than its factorization.

55437120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19272 (or 19259 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 55437120 is about 7445.6107875714. The cubic root of 55437120 is about 381.3000715388.

The spelling of 55437120 in words is "fifty-five million, four hundred thirty-seven thousand, one hundred twenty".