25996723200 has 924 divisors, whose sum is σ = 110973601600. Its totient is φ = 5912248320.

The previous prime is 25996723177. The next prime is 25996723219. The reversal of 25996723200 is 232769952.

It is a happy number.

25996723200 is a `hidden beast` number, since 259 + 9 + 6 + 72 + 320 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 130636701 + ... + 130636899.

Almost surely, 2^25996723200 is an apocalyptic number.

25996723200 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 25996723200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55486800800).

25996723200 is an abundant number, since it is smaller than the sum of its proper divisors (84976878400).

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

25996723200 is an equidigital number, since it uses as much as digits as its factorization.

25996723200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 25996723200 in words is "twenty-five billion, nine hundred ninety-six million, seven hundred twenty-three thousand, two hundred".