25252618407384 has 96 divisors (see below), whose sum is σ = 66771824109120. Its totient is φ = 7957433760192.

The previous prime is 25252618407347. The next prime is 25252618407427. The reversal of 25252618407384 is 48370481625252.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 925467 + ... + 7166709.

It is an arithmetic number, because the mean of its divisors is an integer number (695539834470).

Almost surely, 2^{25252618407384} is an apocalyptic number.

25252618407384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25252618407384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33385912054560).

25252618407384 is an abundant number, since it is smaller than the sum of its proper divisors (41519205701736).

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

25252618407384 is a wasteful number, since it uses less digits than its factorization.

25252618407384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6241757 (or 6241734 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 57.

The spelling of 25252618407384 in words is "twenty-five trillion, two hundred fifty-two billion, six hundred eighteen million, four hundred seven thousand, three hundred eighty-four".