25500525 has 12 divisors (see below), whose sum is σ = 42160992. Its totient is φ = 13600240.

The previous prime is 25500509. The next prime is 25500539. The reversal of 25500525 is 52500552.

It is not a de Polignac number, because 25500525 - 2⁴ = 25500509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25500495 and 25500504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169929 + ... + 170078.

It is an arithmetic number, because the mean of its divisors is an integer number (3513416).

Almost surely, 2^25500525 is an apocalyptic number.

25500525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25500525 is a deficient number, since it is larger than the sum of its proper divisors (16660467).

25500525 is a wasteful number, since it uses less digits than its factorization.

25500525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340020 (or 340015 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 25500525 is about 5049.8044516595. The cubic root of 25500525 is about 294.3402857988.

The spelling of 25500525 in words is "twenty-five million, five hundred thousand, five hundred twenty-five".