25241814252 has 144 divisors (see below), whose sum is σ = 68615295840. Its totient is φ = 7808016384.

The previous prime is 25241814229. The next prime is 25241814271.

25241814252 is a `hidden beast` number, since 2 + 52 + 4 + 181 + 425 + 2 = 666.

25241814252 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3202188 + ... + 3210060.

It is an arithmetic number, because the mean of its divisors is an integer number (476495110).

Almost surely, 2^25241814252 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 25241814252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34307647920).

25241814252 is an abundant number, since it is smaller than the sum of its proper divisors (43373481588).

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

25241814252 is a wasteful number, since it uses less digits than its factorization.

25241814252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8032 (or 8027 counting only the distinct ones).

The product of its digits is 51200, while the sum is 36.

The spelling of 25241814252 in words is "twenty-five billion, two hundred forty-one million, eight hundred fourteen thousand, two hundred fifty-two".