55098207 has 24 divisors (see below), whose sum is σ = 84942000. Its totient is φ = 34295040.

The previous prime is 55098203. The next prime is 55098221. The reversal of 55098207 is 70289055.

It is not a de Polignac number, because 55098207 - 2² = 55098203 is a prime.

It is a super-2 number, since 2×55098207² = 6071624829229698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55098203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18669 + ... + 21417.

It is an arithmetic number, because the mean of its divisors is an integer number (3539250).

Almost surely, 2^55098207 is an apocalyptic number.

55098207 is a deficient number, since it is larger than the sum of its proper divisors (29843793).

55098207 is a wasteful number, since it uses less digits than its factorization.

55098207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903 (or 2900 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 55098207 is about 7422.8166486853. The cubic root of 55098207 is about 380.5214609135.

The spelling of 55098207 in words is "fifty-five million, ninety-eight thousand, two hundred seven".