55205118 has 32 divisors (see below), whose sum is σ = 124999200. Its totient is φ = 18053568.

The previous prime is 55205099. The next prime is 55205123. The reversal of 55205118 is 81150255.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 55205091 and 55205100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6783 + ... + 12506.

It is an arithmetic number, because the mean of its divisors is an integer number (3906225).

Almost surely, 2^55205118 is an apocalyptic number.

55205118 is an abundant number, since it is smaller than the sum of its proper divisors (69794082).

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

55205118 is a wasteful number, since it uses less digits than its factorization.

55205118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19353 (or 19347 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 55205118 is about 7430.0146702412. The cubic root of 55205118 is about 380.7674195859.

The spelling of 55205118 in words is "fifty-five million, two hundred five thousand, one hundred eighteen".