25503250525 has 24 divisors (see below), whose sum is σ = 31889458944. Its totient is φ = 20231947200.

The previous prime is 25503250523. The next prime is 25503250529. The reversal of 25503250525 is 52505230552.

It is not a de Polignac number, because 25503250525 - 2¹ = 25503250523 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 (25503250523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1792339 + ... + 1806511.

It is an arithmetic number, because the mean of its divisors is an integer number (1328727456).

Almost surely, 2^25503250525 is an apocalyptic number.

25503250525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25503250525 is a deficient number, since it is larger than the sum of its proper divisors (6386208419).

25503250525 is a wasteful number, since it uses less digits than its factorization.

25503250525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14781 (or 14776 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 34.

The spelling of 25503250525 in words is "twenty-five billion, five hundred three million, two hundred fifty thousand, five hundred twenty-five".