25319223 has 10 divisors (see below), whose sum is σ = 37822664. Its totient is φ = 16879428.

The previous prime is 25319221. The next prime is 25319237. The reversal of 25319223 is 32291352.

It is not a de Polignac number, because 25319223 - 2¹ = 25319221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25319221) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 156211 + ... + 156372.

Almost surely, 2^25319223 is an apocalyptic number.

25319223 is a deficient number, since it is larger than the sum of its proper divisors (12503441).

25319223 is an equidigital number, since it uses as much as digits as its factorization.

25319223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312595 (or 312586 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 25319223 is about 5031.8210421278. The cubic root of 25319223 is about 293.6410655077.

The spelling of 25319223 in words is "twenty-five million, three hundred nineteen thousand, two hundred twenty-three".