25872525 has 36 divisors (see below), whose sum is σ = 52963872. Its totient is φ = 11826720.

The previous prime is 25872523. The next prime is 25872557. The reversal of 25872525 is 52527852.

It is not a de Polignac number, because 25872525 - 2¹ = 25872523 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25872525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25872523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6639 + ... + 9788.

Almost surely, 2^25872525 is an apocalyptic number.

25872525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25872525 is an abundant number, since it is smaller than the sum of its proper divisors (27091347).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25872525 is a wasteful number, since it uses less digits than its factorization.

25872525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16450 (or 16442 counting only the distinct ones).

The product of its digits is 56000, while the sum is 36.

The square root of 25872525 is about 5086.5042022985. The cubic root of 25872525 is about 295.7646542063.

The spelling of 25872525 in words is "twenty-five million, eight hundred seventy-two thousand, five hundred twenty-five".