25600016 has 20 divisors (see below), whose sum is σ = 53415852. Its totient is φ = 11815296.

The previous prime is 25600013. The next prime is 25600033. The reversal of 25600016 is 61000652.

It can be written as a sum of positive squares in 2 ways, for example, as 7075600 + 18524416 = 2660^2 + 4304^2 .

It is not an unprimeable number, because it can be changed into a prime (25600013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61331 + ... + 61746.

Almost surely, 2^25600016 is an apocalyptic number.

25600016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25600016 is an abundant number, since it is smaller than the sum of its proper divisors (27815836).

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

25600016 is a wasteful number, since it uses less digits than its factorization.

25600016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123098 (or 123092 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 25600016 is about 5059.6458374080. The cubic root of 25600016 is about 294.7225812917.

Adding to 25600016 its reverse (61000652), we get a palindrome (86600668).

It can be divided in two parts, 256000 and 16, that multiplied together give a cube (4096000 = 160³).

The spelling of 25600016 in words is "twenty-five million, six hundred thousand, sixteen".