25104225 has 48 divisors (see below), whose sum is σ = 44441600. Its totient is φ = 12467520.

The previous prime is 25104221. The next prime is 25104239. The reversal of 25104225 is 52240152.

It is a happy number.

It is not a de Polignac number, because 25104225 - 2² = 25104221 is a prime.

It is a super-2 number, since 2×25104225² = 1260444225701250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25104221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112464 + ... + 112686.

Almost surely, 2^25104225 is an apocalyptic number.

25104225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25104225 is a deficient number, since it is larger than the sum of its proper divisors (19337375).

25104225 is a wasteful number, since it uses less digits than its factorization.

25104225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 25104225 is about 5010.4116597342. The cubic root of 25104225 is about 292.8075514453.

Adding to 25104225 its reverse (52240152), we get a palindrome (77344377).

The spelling of 25104225 in words is "twenty-five million, one hundred four thousand, two hundred twenty-five".