25002651253 has 4 divisors (see below), whose sum is σ = 25091000128. Its totient is φ = 24914302380.

The previous prime is 25002651229. The next prime is 25002651259. The reversal of 25002651253 is 35215620052.

It is a happy number.

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 25002651253 - 2²⁵ = 24969096821 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 (25002651259) 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, 44174013 + ... + 44174578.

It is an arithmetic number, because the mean of its divisors is an integer number (6272750032).

Almost surely, 2^25002651253 is an apocalyptic number.

It is an amenable number.

25002651253 is a deficient number, since it is larger than the sum of its proper divisors (88348875).

25002651253 is an equidigital number, since it uses as much as digits as its factorization.

25002651253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88348874.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 25002651253 in words is "twenty-five billion, two million, six hundred fifty-one thousand, two hundred fifty-three".