55118007 has 12 divisors (see below), whose sum is σ = 90988560. Its totient is φ = 31495968.

The previous prime is 55117999. The next prime is 55118047. The reversal of 55118007 is 70081155.

It is not a de Polignac number, because 55118007 - 2³ = 55117999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55118047) 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, 437382 + ... + 437507.

It is an arithmetic number, because the mean of its divisors is an integer number (7582380).

Almost surely, 2^55118007 is an apocalyptic number.

55118007 is a deficient number, since it is larger than the sum of its proper divisors (35870553).

55118007 is a wasteful number, since it uses less digits than its factorization.

55118007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874902 (or 874899 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 55118007 is about 7424.1502544062. The cubic root of 55118007 is about 380.5670366409.

The spelling of 55118007 in words is "fifty-five million, one hundred eighteen thousand, seven".