25222169 has 16 divisors (see below), whose sum is σ = 30715776. Its totient is φ = 20217600.

The previous prime is 25222159. The next prime is 25222181. The reversal of 25222169 is 96122252.

It is a cyclic number.

It is not a de Polignac number, because 25222169 - 2⁸ = 25221913 is a prime.

It is a super-2 number, since 2×25222169² = 1272315618129122, which contains 22 as substring.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (25222129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20954 + ... + 22124.

It is an arithmetic number, because the mean of its divisors is an integer number (1919736).

Almost surely, 2^25222169 is an apocalyptic number.

It is an amenable number.

25222169 is a deficient number, since it is larger than the sum of its proper divisors (5493607).

25222169 is a wasteful number, since it uses less digits than its factorization.

25222169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376.

The product of its digits is 4320, while the sum is 29.

The square root of 25222169 is about 5022.1677590459. The cubic root of 25222169 is about 293.2653887341.

The spelling of 25222169 in words is "twenty-five million, two hundred twenty-two thousand, one hundred sixty-nine".