25672525 has 12 divisors (see below), whose sum is σ = 31973524. Its totient is φ = 20448000.

The previous prime is 25672523. The next prime is 25672529. The reversal of 25672525 is 52527652.

It can be written as a sum of positive squares in 6 ways, for example, as 2111209 + 23561316 = 1453^2 + 4854^2 .

It is not a de Polignac number, because 25672525 - 2¹ = 25672523 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25672523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3895 + ... + 8155.

Almost surely, 2^25672525 is an apocalyptic number.

25672525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25672525 is a deficient number, since it is larger than the sum of its proper divisors (6300999).

25672525 is a wasteful number, since it uses less digits than its factorization.

25672525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4512 (or 4507 counting only the distinct ones).

The product of its digits is 42000, while the sum is 34.

The square root of 25672525 is about 5066.8061932543. The cubic root of 25672525 is about 295.0005745464. Note that the first 3 decimals are identical.

The spelling of 25672525 in words is "twenty-five million, six hundred seventy-two thousand, five hundred twenty-five".