18850055 has 24 divisors (see below), whose sum is σ = 26889408. Its totient is φ = 12643008.

The previous prime is 18850049. The next prime is 18850061. The reversal of 18850055 is 55005881.

It is an interprime number because it is at equal distance from previous prime (18850049) and next prime (18850061).

It is not a de Polignac number, because 18850055 - 2¹⁰ = 18849031 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10697 + ... + 12333.

It is an arithmetic number, because the mean of its divisors is an integer number (1120392).

Almost surely, 2^18850055 is an apocalyptic number.

18850055 is a deficient number, since it is larger than the sum of its proper divisors (8039353).

18850055 is a wasteful number, since it uses less digits than its factorization.

18850055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1696 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 32.

The square root of 18850055 is about 4341.6650031987. The cubic root of 18850055 is about 266.1363566818.

The spelling of 18850055 in words is "eighteen million, eight hundred fifty thousand, fifty-five".