55155112 has 16 divisors (see below), whose sum is σ = 103694400. Its totient is φ = 27503280.

The previous prime is 55155109. The next prime is 55155131. The reversal of 55155112 is 21155155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6064 + ... + 12127.

It is an arithmetic number, because the mean of its divisors is an integer number (6480900).

Almost surely, 2^55155112 is an apocalyptic number.

55155112 is the 6064-th pentagonal number.

It is an amenable number.

55155112 is a deficient number, since it is larger than the sum of its proper divisors (48539288).

55155112 is a wasteful number, since it uses less digits than its factorization.

55155112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18576 (or 18572 counting only the distinct ones).

The product of its digits is 1250, while the sum is 25.

The square root of 55155112 is about 7426.6487731682. The cubic root of 55155112 is about 380.6524157100.

The spelling of 55155112 in words is "fifty-five million, one hundred fifty-five thousand, one hundred twelve".