25117222 has 16 divisors (see below), whose sum is σ = 40656672. Its totient is φ = 11568960.

The previous prime is 25117217. The next prime is 25117237. The reversal of 25117222 is 22271152.

It is a junction number, because it is equal to n+sod(n) for n = 25117193 and 25117202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23847 + ... + 24877.

It is an arithmetic number, because the mean of its divisors is an integer number (2541042).

Almost surely, 2^25117222 is an apocalyptic number.

25117222 is a deficient number, since it is larger than the sum of its proper divisors (15539450).

25117222 is a wasteful number, since it uses less digits than its factorization.

25117222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983.

The product of its digits is 560, while the sum is 22.

The square root of 25117222 is about 5011.7084911236. The cubic root of 25117222 is about 292.8580736607.

Adding to 25117222 its reverse (22271152), we get a palindrome (47388374).

The spelling of 25117222 in words is "twenty-five million, one hundred seventeen thousand, two hundred twenty-two".