55156612 has 24 divisors (see below), whose sum is σ = 111024704. Its totient is φ = 23486112.

The previous prime is 55156609. The next prime is 55156613. The reversal of 55156612 is 21665155.

55156612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55156613) 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, 1878 + ... + 10669.

Almost surely, 2^55156612 is an apocalyptic number.

It is an amenable number.

55156612 is an abundant number, since it is smaller than the sum of its proper divisors (55868092).

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

55156612 is a wasteful number, since it uses less digits than its factorization.

55156612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12715 (or 12713 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

The square root of 55156612 is about 7426.7497601575. The cubic root of 55156612 is about 380.6558664234.

The spelling of 55156612 in words is "fifty-five million, one hundred fifty-six thousand, six hundred twelve".