25363423235440 has 80 divisors (see below), whose sum is σ = 59507347152096. Its totient is φ = 10052962304000.

The previous prime is 25363423235413. The next prime is 25363423235453. The reversal of 25363423235440 is 4453232436352.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34448760 + ... + 35177320.

Almost surely, 2^{25363423235440} is an apocalyptic number.

25363423235440 is a gapful number since it is divisible by the number (20) 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 25363423235440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29753673576048).

25363423235440 is an abundant number, since it is smaller than the sum of its proper divisors (34143923916656).

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

25363423235440 is a wasteful number, since it uses less digits than its factorization.

25363423235440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732538 (or 732532 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 46.

The spelling of 25363423235440 in words is "twenty-five trillion, three hundred sixty-three billion, four hundred twenty-three million, two hundred thirty-five thousand, four hundred forty".