25242321252 has 96 divisors (see below), whose sum is σ = 61160730624. Its totient is φ = 8097177600.

The previous prime is 25242321239. The next prime is 25242321253. The reversal of 25242321252 is 25212324252.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25242321253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18277602 + ... + 18278982.

It is an arithmetic number, because the mean of its divisors is an integer number (637090944).

Almost surely, 2^25242321252 is an apocalyptic number.

It is an amenable number.

25242321252 is an abundant number, since it is smaller than the sum of its proper divisors (35918409372).

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

25242321252 is a wasteful number, since it uses less digits than its factorization.

25242321252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909 (or 1907 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The spelling of 25242321252 in words is "twenty-five billion, two hundred forty-two million, three hundred twenty-one thousand, two hundred fifty-two".