55055115 has 12 divisors (see below), whose sum is σ = 95428944. Its totient is φ = 29362704.

The previous prime is 55055111. The next prime is 55055167. The reversal of 55055115 is 51155055.

It is not a de Polignac number, because 55055115 - 2² = 55055111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55055111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 611679 + ... + 611768.

It is an arithmetic number, because the mean of its divisors is an integer number (7952412).

Almost surely, 2^55055115 is an apocalyptic number.

55055115 is a deficient number, since it is larger than the sum of its proper divisors (40373829).

55055115 is a wasteful number, since it uses less digits than its factorization.

55055115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223458 (or 1223455 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The square root of 55055115 is about 7419.9134091983. The cubic root of 55055115 is about 380.4222338041.

The spelling of 55055115 in words is "fifty-five million, fifty-five thousand, one hundred fifteen".