2521323253 has 4 divisors (see below), whose sum is σ = 2541176320. Its totient is φ = 2501470188.

The previous prime is 2521323239. The next prime is 2521323263. The reversal of 2521323253 is 3523231252.

It is a happy number.

2521323253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2521323253 - 2⁵ = 2521323221 is a prime.

It is a super-2 number, since 2×2521323253² = 12714141892237004018, 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 (2521323263) 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, 9926343 + ... + 9926596.

It is an arithmetic number, because the mean of its divisors is an integer number (635294080).

Almost surely, 2^2521323253 is an apocalyptic number.

It is an amenable number.

2521323253 is a deficient number, since it is larger than the sum of its proper divisors (19853067).

2521323253 is a wasteful number, since it uses less digits than its factorization.

2521323253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19853066.

The product of its digits is 10800, while the sum is 28.

The square root of 2521323253 is about 50212.7797776622. The cubic root of 2521323253 is about 1361.0565702765.

The spelling of 2521323253 in words is "two billion, five hundred twenty-one million, three hundred twenty-three thousand, two hundred fifty-three".