25365516 has 48 divisors (see below), whose sum is σ = 65681280. Its totient is φ = 7553920.

The previous prime is 25365503. The next prime is 25365541. The reversal of 25365516 is 61556352.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6160 + ... + 9416.

It is an arithmetic number, because the mean of its divisors is an integer number (1368360).

Almost surely, 2^25365516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25365516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32840640).

25365516 is an abundant number, since it is smaller than the sum of its proper divisors (40315764).

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

25365516 is a wasteful number, since it uses less digits than its factorization.

25365516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334 (or 3332 counting only the distinct ones).

The product of its digits is 27000, while the sum is 33.

The square root of 25365516 is about 5036.4189658923. The cubic root of 25365516 is about 293.8199184103.

The spelling of 25365516 in words is "twenty-five million, three hundred sixty-five thousand, five hundred sixteen".