25138233 has 12 divisors (see below), whose sum is σ = 36379200. Its totient is φ = 16727256.

The previous prime is 25138181. The next prime is 25138247. The reversal of 25138233 is 33283152.

25138233 is a `hidden beast` number, since 251 + 382 + 33 = 666.

It is not a de Polignac number, because 25138233 - 2⁸ = 25137977 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25138197 and 25138206.

It is not an unprimeable number, because it can be changed into a prime (25138033) 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, 3060 + ... + 7722.

It is an arithmetic number, because the mean of its divisors is an integer number (3031600).

Almost surely, 2^25138233 is an apocalyptic number.

It is an amenable number.

25138233 is a deficient number, since it is larger than the sum of its proper divisors (11240967).

25138233 is a wasteful number, since it uses less digits than its factorization.

25138233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5268 (or 5265 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 25138233 is about 5013.8042442840. The cubic root of 25138233 is about 292.9397112189.

The spelling of 25138233 in words is "twenty-five million, one hundred thirty-eight thousand, two hundred thirty-three".