25116222 has 16 divisors (see below), whose sum is σ = 50291712. Its totient is φ = 8362200.

The previous prime is 25116211. The next prime is 25116239. The reversal of 25116222 is 22261152.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4597 + ... + 8447.

It is an arithmetic number, because the mean of its divisors is an integer number (3143232).

Almost surely, 2^25116222 is an apocalyptic number.

25116222 is an abundant number, since it is smaller than the sum of its proper divisors (25175490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25116222 is a wasteful number, since it uses less digits than its factorization.

25116222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4943.

The product of its digits is 480, while the sum is 21.

The square root of 25116222 is about 5011.6087237533. The cubic root of 25116222 is about 292.8541870584.

Adding to 25116222 its reverse (22261152), we get a palindrome (47377374).

The spelling of 25116222 in words is "twenty-five million, one hundred sixteen thousand, two hundred twenty-two".