18550055 has 8 divisors (see below), whose sum is σ = 22468752. Its totient is φ = 14700928.

The previous prime is 18550033. The next prime is 18550067. The reversal of 18550055 is 55005581.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18550055 - 2¹⁶ = 18484519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16802 + ... + 17871.

It is an arithmetic number, because the mean of its divisors is an integer number (2808594).

Almost surely, 2^18550055 is an apocalyptic number.

18550055 is a deficient number, since it is larger than the sum of its proper divisors (3918697).

18550055 is a wasteful number, since it uses less digits than its factorization.

18550055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34785.

The product of its (nonzero) digits is 5000, while the sum is 29.

The square root of 18550055 is about 4306.9774784645. The cubic root of 18550055 is about 264.7169399544.

The spelling of 18550055 in words is "eighteen million, five hundred fifty thousand, fifty-five".