25265525 has 12 divisors (see below), whose sum is σ = 32410500. Its totient is φ = 19514880.

The previous prime is 25265521. The next prime is 25265549. The reversal of 25265525 is 52556252.

It can be written as a sum of positive squares in 6 ways, for example, as 4490161 + 20775364 = 2119^2 + 4558^2 .

It is not a de Polignac number, because 25265525 - 2² = 25265521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25265491 and 25265500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25265521) 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 11 ways as a sum of consecutive naturals, for example, 16700 + ... + 18149.

It is an arithmetic number, because the mean of its divisors is an integer number (2700875).

Almost surely, 2^25265525 is an apocalyptic number.

25265525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25265525 is a deficient number, since it is larger than the sum of its proper divisors (7144975).

25265525 is a wasteful number, since it uses less digits than its factorization.

25265525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34888 (or 34883 counting only the distinct ones).

The product of its digits is 30000, while the sum is 32.

The square root of 25265525 is about 5026.4823684163. The cubic root of 25265525 is about 293.4333300890.

The spelling of 25265525 in words is "twenty-five million, two hundred sixty-five thousand, five hundred twenty-five".