25225516 has 6 divisors (see below), whose sum is σ = 44144660. Its totient is φ = 12612756.

The previous prime is 25225489. The next prime is 25225523. The reversal of 25225516 is 61552252.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3153186 + ... + 3153193.

Almost surely, 2^25225516 is an apocalyptic number.

It is an amenable number.

25225516 is a deficient number, since it is larger than the sum of its proper divisors (18919144).

25225516 is a wasteful number, since it uses less digits than its factorization.

25225516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306383 (or 6306381 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 25225516 is about 5022.5009706321. The cubic root of 25225516 is about 293.2783603365.

Adding to 25225516 its reverse (61552252), we get a palindrome (86777768).

The spelling of 25225516 in words is "twenty-five million, two hundred twenty-five thousand, five hundred sixteen".