25865572395000 has 320 divisors, whose sum is σ = 87475470888960. Its totient is φ = 6333566400000.

The previous prime is 25865572394969. The next prime is 25865572395001. The reversal of 25865572395000 is 59327556852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25865572395001) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 36897765 + ... + 37592235.

It is an arithmetic number, because the mean of its divisors is an integer number (273360846528).

Almost surely, 2^{25865572395000} is an apocalyptic number.

25865572395000 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 25865572395000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43737735444480).

25865572395000 is an abundant number, since it is smaller than the sum of its proper divisors (61609898493960).

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

25865572395000 is a wasteful number, since it uses less digits than its factorization.

25865572395000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694704 (or 694685 counting only the distinct ones).

The product of its (nonzero) digits is 22680000, while the sum is 57.

The spelling of 25865572395000 in words is "twenty-five trillion, eight hundred sixty-five billion, five hundred seventy-two million, three hundred ninety-five thousand".