2521131253 has 4 divisors (see below), whose sum is σ = 2530040128. Its totient is φ = 2512222380.

The previous prime is 2521131251. The next prime is 2521131259. The reversal of 2521131253 is 3521311252.

2521131253 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 2521131253 - 2¹ = 2521131251 is a prime.

It is a super-2 number, since 2×2521131253² = 12712205589706700018, 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 (2521131251) 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, 4454013 + ... + 4454578.

It is an arithmetic number, because the mean of its divisors is an integer number (632510032).

Almost surely, 2^2521131253 is an apocalyptic number.

It is an amenable number.

2521131253 is a deficient number, since it is larger than the sum of its proper divisors (8908875).

2521131253 is an equidigital number, since it uses as much as digits as its factorization.

2521131253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8908874.

The product of its digits is 1800, while the sum is 25.

The square root of 2521131253 is about 50210.8678773829. The cubic root of 2521131253 is about 1361.0220210248.

The spelling of 2521131253 in words is "two billion, five hundred twenty-one million, one hundred thirty-one thousand, two hundred fifty-three".