25225238 has 8 divisors (see below), whose sum is σ = 38228232. Its totient is φ = 12482496.

The previous prime is 25225237. The next prime is 25225241. The reversal of 25225238 is 83252252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 25225238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25225237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64820 + ... + 65207.

It is an arithmetic number, because the mean of its divisors is an integer number (4778529).

Almost surely, 2^25225238 is an apocalyptic number.

25225238 is a deficient number, since it is larger than the sum of its proper divisors (13002994).

25225238 is a wasteful number, since it uses less digits than its factorization.

25225238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130126.

The product of its digits is 9600, while the sum is 29.

The square root of 25225238 is about 5022.4732951007. The cubic root of 25225238 is about 293.2772829659.

The spelling of 25225238 in words is "twenty-five million, two hundred twenty-five thousand, two hundred thirty-eight".