25222163 has 4 divisors (see below), whose sum is σ = 25232280. Its totient is φ = 25212048.

The previous prime is 25222159. The next prime is 25222181. The reversal of 25222163 is 36122252.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25222163 - 2² = 25222159 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (25222103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628 + ... + 7286.

It is an arithmetic number, because the mean of its divisors is an integer number (6308070).

Almost surely, 2^25222163 is an apocalyptic number.

25222163 is a deficient number, since it is larger than the sum of its proper divisors (10117).

25222163 is an equidigital number, since it uses as much as digits as its factorization.

25222163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10116.

The product of its digits is 1440, while the sum is 23.

The square root of 25222163 is about 5022.1671616942. The cubic root of 25222163 is about 293.2653654795.

The spelling of 25222163 in words is "twenty-five million, two hundred twenty-two thousand, one hundred sixty-three".