25616228 has 24 divisors (see below), whose sum is σ = 49369824. Its totient is φ = 11532800.

The previous prime is 25616197. The next prime is 25616243. The reversal of 25616228 is 82261652.

It is a super-2 number, since 2×25616228² = 1312382273895968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25616194 and 25616203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1988 + ... + 7428.

It is an arithmetic number, because the mean of its divisors is an integer number (2057076).

Almost surely, 2^25616228 is an apocalyptic number.

It is an amenable number.

25616228 is a deficient number, since it is larger than the sum of its proper divisors (23753596).

25616228 is a wasteful number, since it uses less digits than its factorization.

25616228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563 (or 5561 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 25616228 is about 5061.2476722642. The cubic root of 25616228 is about 294.7847822194.

The spelling of 25616228 in words is "twenty-five million, six hundred sixteen thousand, two hundred twenty-eight".