25225111798740 has 144 divisors (see below), whose sum is σ = 87468405897600. Its totient is φ = 5764332038400.

The previous prime is 25225111798703. The next prime is 25225111798759. The reversal of 25225111798740 is 4789711152252.

25225111798740 is a `hidden beast` number, since 2 + 5 + 2 + 2 + 511 + 1 + 7 + 9 + 87 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2722690 + ... + 7606790.

It is an arithmetic number, because the mean of its divisors is an integer number (607419485400).

Almost surely, 2^{25225111798740} is an apocalyptic number.

25225111798740 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 25225111798740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43734202948800).

25225111798740 is an abundant number, since it is smaller than the sum of its proper divisors (62243294098860).

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

25225111798740 is a wasteful number, since it uses less digits than its factorization.

25225111798740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888222 (or 4888217 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 54.

The spelling of 25225111798740 in words is "twenty-five trillion, two hundred twenty-five billion, one hundred eleven million, seven hundred ninety-eight thousand, seven hundred forty".