25234443252 has 72 divisors (see below), whose sum is σ = 65098968480. Its totient is φ = 8239498560.

The previous prime is 25234443239. The next prime is 25234443253.

25234443252 is a `hidden beast` number, since 2 + 523 + 44 + 43 + 2 + 52 = 666.

25234443252 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25234443253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 580102 + ... + 622082.

It is an arithmetic number, because the mean of its divisors is an integer number (904152340).

Almost surely, 2^25234443252 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 25234443252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32549484240).

25234443252 is an abundant number, since it is smaller than the sum of its proper divisors (39864525228).

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

25234443252 is a wasteful number, since it uses less digits than its factorization.

25234443252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42333 (or 42328 counting only the distinct ones).

The product of its digits is 230400, while the sum is 36.

The spelling of 25234443252 in words is "twenty-five billion, two hundred thirty-four million, four hundred forty-three thousand, two hundred fifty-two".