20152253 has 8 divisors (see below), whose sum is σ = 22040256. Its totient is φ = 18273600.

The previous prime is 20152213. The next prime is 20152261. The reversal of 20152253 is 35225102.

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 20152253 - 2²⁰ = 19103677 is a prime.

It is a super-2 number, since 2×20152253² = 812226601952018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20152213) 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, 2648 + ... + 6878.

It is an arithmetic number, because the mean of its divisors is an integer number (2755032).

Almost surely, 2^20152253 is an apocalyptic number.

It is an amenable number.

20152253 is a deficient number, since it is larger than the sum of its proper divisors (1888003).

20152253 is a wasteful number, since it uses less digits than its factorization.

20152253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 20152253 is about 4489.1260842173. The cubic root of 20152253 is about 272.1288181997.

Adding to 20152253 its reverse (35225102), we get a palindrome (55377355).

The spelling of 20152253 in words is "twenty million, one hundred fifty-two thousand, two hundred fifty-three".