25516016 has 20 divisors (see below), whose sum is σ = 51587472. Its totient is φ = 12203136.

The previous prime is 25516013. The next prime is 25516037. The reversal of 25516016 is 61061552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25516013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34301 + ... + 35036.

Almost surely, 2^25516016 is an apocalyptic number.

It is an amenable number.

25516016 is an abundant number, since it is smaller than the sum of its proper divisors (26071456).

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

25516016 is a wasteful number, since it uses less digits than its factorization.

25516016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69368 (or 69362 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 25516016 is about 5051.3380405592. The cubic root of 25516016 is about 294.3998754528.

Adding to 25516016 its reverse (61061552), we get a palindrome (86577568).

The spelling of 25516016 in words is "twenty-five million, five hundred sixteen thousand, sixteen".