55018206 has 24 divisors (see below), whose sum is σ = 120438864. Its totient is φ = 18149760.

The previous prime is 55018193. The next prime is 55018213. The reversal of 55018206 is 60281055.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55018206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14010 + ... + 17501.

It is an arithmetic number, because the mean of its divisors is an integer number (5018286).

Almost surely, 2^55018206 is an apocalyptic number.

55018206 is an abundant number, since it is smaller than the sum of its proper divisors (65420658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55018206 is a wasteful number, since it uses less digits than its factorization.

55018206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31616 (or 31613 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 55018206 is about 7417.4258338051. The cubic root of 55018206 is about 380.3372029939.

The spelling of 55018206 in words is "fifty-five million, eighteen thousand, two hundred six".