25452331830 has 96 divisors (see below), whose sum is σ = 70104325824. Its totient is φ = 6384795648.

The previous prime is 25452331811. The next prime is 25452331843. The reversal of 25452331830 is 3813325452.

25452331830 is a `hidden beast` number, since 2 + 54 + 523 + 3 + 1 + 83 + 0 = 666.

It is a super-2 number, since 2×25452331830² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4796959 + ... + 4802261.

It is an arithmetic number, because the mean of its divisors is an integer number (730253394).

Almost surely, 2^25452331830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25452331830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35052162912).

25452331830 is an abundant number, since it is smaller than the sum of its proper divisors (44651993994).

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

25452331830 is a wasteful number, since it uses less digits than its factorization.

25452331830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470 (or 8467 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 25452331830 in words is "twenty-five billion, four hundred fifty-two million, three hundred thirty-one thousand, eight hundred thirty".