25138222 has 8 divisors (see below), whose sum is σ = 38325672. Its totient is φ = 12363000.

The previous prime is 25138181. The next prime is 25138247. The reversal of 25138222 is 22283152.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102904 + ... + 103147.

It is an arithmetic number, because the mean of its divisors is an integer number (4790709).

Almost surely, 2^25138222 is an apocalyptic number.

25138222 is a deficient number, since it is larger than the sum of its proper divisors (13187450).

25138222 is a wasteful number, since it uses less digits than its factorization.

25138222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206114.

The product of its digits is 1920, while the sum is 25.

The square root of 25138222 is about 5013.8031473124. The cubic root of 25138222 is about 292.9396684906.

The spelling of 25138222 in words is "twenty-five million, one hundred thirty-eight thousand, two hundred twenty-two".