25636525 has 12 divisors (see below), whose sum is σ = 31854112. Its totient is φ = 20467440.

The previous prime is 25636519. The next prime is 25636537. The reversal of 25636525 is 52563652.

It is not a de Polignac number, because 25636525 - 2¹⁷ = 25505453 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

25636525 is a Rhonda number in base 8.

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, 19024 + ... + 20326.

Almost surely, 2^25636525 is an apocalyptic number.

25636525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25636525 is a deficient number, since it is larger than the sum of its proper divisors (6217587).

25636525 is a wasteful number, since it uses less digits than its factorization.

25636525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100 (or 2095 counting only the distinct ones).

The product of its digits is 54000, while the sum is 34.

The square root of 25636525 is about 5063.2524132222. The cubic root of 25636525 is about 294.8626191690.

The spelling of 25636525 in words is "twenty-five million, six hundred thirty-six thousand, five hundred twenty-five".