25818252 has 12 divisors (see below), whose sum is σ = 60242616. Its totient is φ = 8606080.

The previous prime is 25818251. The next prime is 25818263. The reversal of 25818252 is 25281852.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (25818251) 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, 1075749 + ... + 1075772.

It is an arithmetic number, because the mean of its divisors is an integer number (5020218).

Almost surely, 2^25818252 is an apocalyptic number.

It is an amenable number.

25818252 is an abundant number, since it is smaller than the sum of its proper divisors (34424364).

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

25818252 is a wasteful number, since it uses less digits than its factorization.

25818252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151528 (or 2151526 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 25818252 is about 5081.1664015263. The cubic root of 25818252 is about 295.5577001455.

The spelling of 25818252 in words is "twenty-five million, eight hundred eighteen thousand, two hundred fifty-two".