18850503 has 16 divisors (see below), whose sum is σ = 28879616. Its totient is φ = 10713600.

The previous prime is 18850499. The next prime is 18850523. The reversal of 18850503 is 30505881.

It is a happy number.

It is not a de Polignac number, because 18850503 - 2² = 18850499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18850523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1728 + ... + 6378.

It is an arithmetic number, because the mean of its divisors is an integer number (1804976).

Almost surely, 2^18850503 is an apocalyptic number.

18850503 is a deficient number, since it is larger than the sum of its proper divisors (10029113).

18850503 is a wasteful number, since it uses less digits than its factorization.

18850503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4854.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 18850503 is about 4341.7165960021. The cubic root of 18850503 is about 266.1384650425.

The spelling of 18850503 in words is "eighteen million, eight hundred fifty thousand, five hundred three".