25787725 has 24 divisors (see below), whose sum is σ = 34604928. Its totient is φ = 18988800.

The previous prime is 25787717. The next prime is 25787737. The reversal of 25787725 is 52778752.

It is not a de Polignac number, because 25787725 - 2³ = 25787717 is a prime.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19330 + ... + 20620.

It is an arithmetic number, because the mean of its divisors is an integer number (1441872).

Almost surely, 2^25787725 is an apocalyptic number.

25787725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25787725 is a deficient number, since it is larger than the sum of its proper divisors (8817203).

25787725 is a wasteful number, since it uses less digits than its factorization.

25787725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365 (or 1360 counting only the distinct ones).

The product of its digits is 274400, while the sum is 43.

The square root of 25787725 is about 5078.1615767913. The cubic root of 25787725 is about 295.4411669754.

The spelling of 25787725 in words is "twenty-five million, seven hundred eighty-seven thousand, seven hundred twenty-five".