25002510925 has 18 divisors (see below), whose sum is σ = 36064848138. Its totient is φ = 17144578080.

The previous prime is 25002510859. The next prime is 25002510937. The reversal of 25002510925 is 52901520052.

It can be written as a sum of positive squares in 3 ways, for example, as 440412196 + 24562098729 = 20986^2 + 156723^2 .

It is not a de Polignac number, because 25002510925 - 2⁹ = 25002510413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10203882 + ... + 10206331.

Almost surely, 2^25002510925 is an apocalyptic number.

25002510925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25002510925 is a deficient number, since it is larger than the sum of its proper divisors (11062337213).

25002510925 is a wasteful number, since it uses less digits than its factorization.

25002510925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20410237 (or 20410225 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 25002510925 in words is "twenty-five billion, two million, five hundred ten thousand, nine hundred twenty-five".