55089912 has 32 divisors (see below), whose sum is σ = 138228480. Its totient is φ = 18296160.

The previous prime is 55089901. The next prime is 55089917. The reversal of 55089912 is 21998055.

55089912 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 not an unprimeable number, because it can be changed into a prime (55089917) by changing a digit.

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, 2737 + ... + 10847.

It is an arithmetic number, because the mean of its divisors is an integer number (4319640).

Almost surely, 2^55089912 is an apocalyptic number.

It is an amenable number.

55089912 is an abundant number, since it is smaller than the sum of its proper divisors (83138568).

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

55089912 is a wasteful number, since it uses less digits than its factorization.

55089912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8403 (or 8399 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 39.

The square root of 55089912 is about 7422.2578774925. The cubic root of 55089912 is about 380.5023642005.

The spelling of 55089912 in words is "fifty-five million, eighty-nine thousand, nine hundred twelve".