25291016 has 16 divisors (see below), whose sum is σ = 49056300. Its totient is φ = 12209344.

The previous prime is 25291003. The next prime is 25291039. The reversal of 25291016 is 61019252.

It can be written as a sum of positive squares in 2 ways, for example, as 24462916 + 828100 = 4946^2 + 910^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54275 + ... + 54738.

Almost surely, 2^25291016 is an apocalyptic number.

It is an amenable number.

25291016 is a deficient number, since it is larger than the sum of its proper divisors (23765284).

25291016 is a wasteful number, since it uses less digits than its factorization.

25291016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109048 (or 109044 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 25291016 is about 5029.0173990552. The cubic root of 25291016 is about 293.5319809169.

The spelling of 25291016 in words is "twenty-five million, two hundred ninety-one thousand, sixteen".