20332253 has 4 divisors (see below), whose sum is σ = 21216288. Its totient is φ = 19448220.

The previous prime is 20332243. The next prime is 20332259. The reversal of 20332253 is 35223302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20332253 - 2⁶ = 20332189 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 (20332259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441983 + ... + 442028.

It is an arithmetic number, because the mean of its divisors is an integer number (5304072).

Almost surely, 2^20332253 is an apocalyptic number.

20332253 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20332253 is a deficient number, since it is larger than the sum of its proper divisors (884035).

20332253 is an equidigital number, since it uses as much as digits as its factorization.

20332253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884034.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 20332253 is about 4509.1299604247. The cubic root of 20332253 is about 272.9366363519.

Adding to 20332253 its reverse (35223302), we get a palindrome (55555555).

The spelling of 20332253 in words is "twenty million, three hundred thirty-two thousand, two hundred fifty-three".