25200788886 has 108 divisors (see below), whose sum is σ = 68778384012. Its totient is φ = 6646322592.

The previous prime is 25200788881. The next prime is 25200788897. The reversal of 25200788886 is 68888700252.

It is a super-2 number, since 2×25200788886² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25200788881) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 64525 + ... + 233591.

It is an arithmetic number, because the mean of its divisors is an integer number (636836889).

Almost surely, 2^25200788886 is an apocalyptic number.

25200788886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 25200788886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34389192006).

25200788886 is an abundant number, since it is smaller than the sum of its proper divisors (43577595126).

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

25200788886 is a wasteful number, since it uses less digits than its factorization.

25200788886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169115 (or 169092 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 54.

The spelling of 25200788886 in words is "twenty-five billion, two hundred million, seven hundred eighty-eight thousand, eight hundred eighty-six".