25356525 has 24 divisors (see below), whose sum is σ = 42720480. Its totient is φ = 13266240.

The previous prime is 25356523. The next prime is 25356553. The reversal of 25356525 is 52565352.

It is not a de Polignac number, because 25356525 - 2¹ = 25356523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25356523) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 786 + ... + 7164.

It is an arithmetic number, because the mean of its divisors is an integer number (1780020).

Almost surely, 2^25356525 is an apocalyptic number.

25356525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25356525 is a deficient number, since it is larger than the sum of its proper divisors (17363955).

25356525 is a wasteful number, since it uses less digits than its factorization.

25356525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445 (or 6440 counting only the distinct ones).

The product of its digits is 45000, while the sum is 33.

The square root of 25356525 is about 5035.5262882841. The cubic root of 25356525 is about 293.7851987397.

The spelling of 25356525 in words is "twenty-five million, three hundred fifty-six thousand, five hundred twenty-five".