25225135 has 32 divisors (see below), whose sum is σ = 34836480. Its totient is φ = 17390208.

The previous prime is 25225129. The next prime is 25225153. The reversal of 25225135 is 53152252.

It is a happy number.

It is not a de Polignac number, because 25225135 - 2⁷ = 25225007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70086 + ... + 70444.

It is an arithmetic number, because the mean of its divisors is an integer number (1088640).

Almost surely, 2^25225135 is an apocalyptic number.

25225135 is a deficient number, since it is larger than the sum of its proper divisors (9611345).

25225135 is a wasteful number, since it uses less digits than its factorization.

25225135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447.

The product of its digits is 3000, while the sum is 25.

The square root of 25225135 is about 5022.4630411781. The cubic root of 25225135 is about 293.2768837943.

Adding to 25225135 its reverse (53152252), we get a palindrome (78377387).

The spelling of 25225135 in words is "twenty-five million, two hundred twenty-five thousand, one hundred thirty-five".