25025002525 has 12 divisors (see below), whose sum is σ = 31080200224. Its totient is φ = 19988262000.

The previous prime is 25025002441. The next prime is 25025002537. The reversal of 25025002525 is 52520052052.

It is not a de Polignac number, because 25025002525 - 2¹⁷ = 25024871453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25025002493 and 25025002502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 777411 + ... + 808960.

Almost surely, 2^25025002525 is an apocalyptic number.

25025002525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25025002525 is a deficient number, since it is larger than the sum of its proper divisors (6055197699).

25025002525 is a wasteful number, since it uses less digits than its factorization.

25025002525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587012 (or 1587007 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

Adding to 25025002525 its reverse (52520052052), we get a palindrome (77545054577).

The spelling of 25025002525 in words is "twenty-five billion, twenty-five million, two thousand, five hundred twenty-five".