25669228 has 24 divisors (see below), whose sum is σ = 50924720. Its totient is φ = 11223360.

The previous prime is 25669211. The next prime is 25669229. The reversal of 25669228 is 82296652.

It is a super-2 number, since 2×25669228² = 1317818532231968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25669229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12003 + ... + 13978.

Almost surely, 2^25669228 is an apocalyptic number.

It is an amenable number.

25669228 is a deficient number, since it is larger than the sum of its proper divisors (25255492).

25669228 is a wasteful number, since it uses less digits than its factorization.

25669228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26017 (or 26015 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 25669228 is about 5066.4808299252. The cubic root of 25669228 is about 294.9879455000.

The spelling of 25669228 in words is "twenty-five million, six hundred sixty-nine thousand, two hundred twenty-eight".