18950253 has 32 divisors (see below), whose sum is σ = 30716160. Its totient is φ = 10172736.

The previous prime is 18950237. The next prime is 18950273. The reversal of 18950253 is 35205981.

It is not a de Polignac number, because 18950253 - 2⁴ = 18950237 is a prime.

It is a super-2 number, since 2×18950253² = 718224177528018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18950233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 512151 + ... + 512187.

It is an arithmetic number, because the mean of its divisors is an integer number (959880).

Almost surely, 2^18950253 is an apocalyptic number.

It is an amenable number.

18950253 is a deficient number, since it is larger than the sum of its proper divisors (11765907).

18950253 is an frugal number, since it uses more digits than its factorization.

18950253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 18950253 is about 4353.1888311903. The cubic root of 18950253 is about 266.6070753996.

The spelling of 18950253 in words is "eighteen million, nine hundred fifty thousand, two hundred fifty-three".