20185253 has 8 divisors (see below), whose sum is σ = 22195200. Its totient is φ = 18204480.

The previous prime is 20185241. The next prime is 20185259. The reversal of 20185253 is 35258102.

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

It is a cyclic number.

It is not a de Polignac number, because 20185253 - 2¹² = 20181157 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 (20185259) 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, 5828 + ... + 8621.

It is an arithmetic number, because the mean of its divisors is an integer number (2774400).

Almost surely, 2^20185253 is an apocalyptic number.

It is an amenable number.

20185253 is a deficient number, since it is larger than the sum of its proper divisors (2009947).

20185253 is a wasteful number, since it uses less digits than its factorization.

20185253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14587.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 20185253 is about 4492.8001290954. The cubic root of 20185253 is about 272.2772772600.

The spelling of 20185253 in words is "twenty million, one hundred eighty-five thousand, two hundred fifty-three".