25222663 has 4 divisors (see below), whose sum is σ = 26092440. Its totient is φ = 24352888.

The previous prime is 25222661. The next prime is 25222669. The reversal of 25222663 is 36622252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25222663 - 2¹ = 25222661 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25222661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434845 + ... + 434902.

It is an arithmetic number, because the mean of its divisors is an integer number (6523110).

Almost surely, 2^25222663 is an apocalyptic number.

25222663 is a deficient number, since it is larger than the sum of its proper divisors (869777).

25222663 is an equidigital number, since it uses as much as digits as its factorization.

25222663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869776.

The product of its digits is 8640, while the sum is 28.

The square root of 25222663 is about 5022.2169407544. The cubic root of 25222663 is about 293.2673033481.

The spelling of 25222663 in words is "twenty-five million, two hundred twenty-two thousand, six hundred sixty-three".