2521331253 has 32 divisors (see below), whose sum is σ = 4416134400. Its totient is φ = 1391076288.

The previous prime is 2521331249. The next prime is 2521331279. The reversal of 2521331253 is 3521331252.

It is a happy number.

It is not a de Polignac number, because 2521331253 - 2² = 2521331249 is a prime.

It is a super-2 number, since 2×2521331253² = 12714222574709100018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521331053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224526 + ... + 235487.

It is an arithmetic number, because the mean of its divisors is an integer number (138004200).

Almost surely, 2^2521331253 is an apocalyptic number.

It is an amenable number.

2521331253 is a deficient number, since it is larger than the sum of its proper divisors (1894803147).

2521331253 is a wasteful number, since it uses less digits than its factorization.

2521331253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460058 (or 460052 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 2521331253 is about 50212.8594385940. The cubic root of 2521331253 is about 1361.0580097906.

Subtracting 2521331253 from its reverse (3521331252), we obtain a palindrome (999999999).

The spelling of 2521331253 in words is "two billion, five hundred twenty-one million, three hundred thirty-one thousand, two hundred fifty-three".