25620016 has 20 divisors (see below), whose sum is σ = 50269600. Its totient is φ = 12647232.

The previous prime is 25619941. The next prime is 25620017. The reversal of 25620016 is 61002652.

It is not an unprimeable number, because it can be changed into a prime (25620017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8871 + ... + 11398.

It is an arithmetic number, because the mean of its divisors is an integer number (2513480).

Almost surely, 2^25620016 is an apocalyptic number.

It is an amenable number.

25620016 is a deficient number, since it is larger than the sum of its proper divisors (24649584).

25620016 is a wasteful number, since it uses less digits than its factorization.

25620016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20356 (or 20350 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 25620016 is about 5061.6218744588. The cubic root of 25620016 is about 294.7993119375.

Adding to 25620016 its reverse (61002652), we get a palindrome (86622668).

The spelling of 25620016 in words is "twenty-five million, six hundred twenty thousand, sixteen".