25223172 has 48 divisors (see below), whose sum is σ = 67116672. Its totient is φ = 7303680.

The previous prime is 25223171. The next prime is 25223183. The reversal of 25223172 is 27132252.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25223171) 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, 2104 + ... + 7407.

It is an arithmetic number, because the mean of its divisors is an integer number (1398264).

Almost surely, 2^25223172 is an apocalyptic number.

It is an amenable number.

25223172 is an abundant number, since it is smaller than the sum of its proper divisors (41893500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25223172 is a wasteful number, since it uses less digits than its factorization.

25223172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9548 (or 9546 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 25223172 is about 5022.2676153307. The cubic root of 25223172 is about 293.2692760721.

The spelling of 25223172 in words is "twenty-five million, two hundred twenty-three thousand, one hundred seventy-two".