18850533 has 8 divisors (see below), whose sum is σ = 27067488. Its totient is φ = 11600304.

The previous prime is 18850523. The next prime is 18850541. The reversal of 18850533 is 33505881.

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

It is not a de Polignac number, because 18850533 - 2⁸ = 18850277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18850494 and 18850503.

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 7 ways as a sum of consecutive naturals, for example, 241635 + ... + 241712.

It is an arithmetic number, because the mean of its divisors is an integer number (3383436).

Almost surely, 2^18850533 is an apocalyptic number.

18850533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18850533 is a deficient number, since it is larger than the sum of its proper divisors (8216955).

18850533 is a wasteful number, since it uses less digits than its factorization.

18850533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483363.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 18850533 is about 4341.7200508554. The cubic root of 18850533 is about 266.1386062261.

It can be divided in two parts, 188 and 50533, that added together give a triangular number (50721 = T₃₁₈).

The spelling of 18850533 in words is "eighteen million, eight hundred fifty thousand, five hundred thirty-three".