55112872 has 16 divisors (see below), whose sum is σ = 104361300. Its totient is φ = 27283200.

The previous prime is 55112857. The next prime is 55112873. The reversal of 55112872 is 27821155.

It can be written as a sum of positive squares in 2 ways, for example, as 50893956 + 4218916 = 7134^2 + 2054^2 .

It is not an unprimeable number, because it can be changed into a prime (55112873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33297 + ... + 34912.

Almost surely, 2^55112872 is an apocalyptic number.

It is an amenable number.

55112872 is a deficient number, since it is larger than the sum of its proper divisors (49248428).

55112872 is a wasteful number, since it uses less digits than its factorization.

55112872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68316 (or 68312 counting only the distinct ones).

The product of its digits is 5600, while the sum is 31.

The square root of 55112872 is about 7423.8044155271. The cubic root of 55112872 is about 380.5552179237. Note that the first 3 decimals are identical.

The spelling of 55112872 in words is "fifty-five million, one hundred twelve thousand, eight hundred seventy-two".