25826725 has 6 divisors (see below), whose sum is σ = 32025170. Its totient is φ = 20661360.

The previous prime is 25826711. The next prime is 25826753. The reversal of 25826725 is 52762852.

It is a Cunningham number, because it is equal to 5082²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 25826724 = 1^2 + 5082^2 .

It is not a de Polignac number, because 25826725 - 2⁵ = 25826693 is a prime.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 516510 + ... + 516559.

Almost surely, 2^25826725 is an apocalyptic number.

25826725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25826725 is a deficient number, since it is larger than the sum of its proper divisors (6198445).

25826725 is a wasteful number, since it uses less digits than its factorization.

25826725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033079 (or 1033074 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 25826725 is about 5082.0000983865. Note that the first 4 decimals coincide. The cubic root of 25826725 is about 295.5900285217.

The spelling of 25826725 in words is "twenty-five million, eight hundred twenty-six thousand, seven hundred twenty-five".