25813116 has 36 divisors (see below), whose sum is σ = 74571952. Its totient is φ = 7375104.

The previous prime is 25813097. The next prime is 25813121. The reversal of 25813116 is 61131852.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 25813116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50965 + ... + 51468.

Almost surely, 2^25813116 is an apocalyptic number.

It is an amenable number.

25813116 is an abundant number, since it is smaller than the sum of its proper divisors (48758836).

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

25813116 is a wasteful number, since it uses less digits than its factorization.

25813116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102450 (or 102445 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 25813116 is about 5080.6609806205. The cubic root of 25813116 is about 295.5381005096.

Adding to 25813116 its reverse (61131852), we get a palindrome (86944968).

The spelling of 25813116 in words is "twenty-five million, eight hundred thirteen thousand, one hundred sixteen".