25672225 has 12 divisors (see below), whose sum is σ = 32129020. Its totient is φ = 20347200.

The previous prime is 25672217. The next prime is 25672243. The reversal of 25672225 is 52227652.

It can be written as a sum of positive squares in 6 ways, for example, as 431649 + 25240576 = 657^2 + 5024^2 .

It is not a de Polignac number, because 25672225 - 2³ = 25672217 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1986 + ... + 7435.

Almost surely, 2^25672225 is an apocalyptic number.

25672225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25672225 is a deficient number, since it is larger than the sum of its proper divisors (6456795).

25672225 is a wasteful number, since it uses less digits than its factorization.

25672225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9540 (or 9535 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 25672225 is about 5066.7765887199. The cubic root of 25672225 is about 294.9994254513. Note that the first 3 decimals are identical.

Adding to 25672225 its reverse (52227652), we get a palindrome (77899877).

The spelling of 25672225 in words is "twenty-five million, six hundred seventy-two thousand, two hundred twenty-five".