25987027200 has 216 divisors, whose sum is σ = 88531166976. Its totient is φ = 6706176000.

The previous prime is 25987027193. The next prime is 25987027207. The reversal of 25987027200 is 272078952.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25987027193) and next prime (25987027207).

It is not an unprimeable number, because it can be changed into a prime (25987027207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 573370 + ... + 617030.

Almost surely, 2^25987027200 is an apocalyptic number.

25987027200 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 25987027200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44265583488).

25987027200 is an abundant number, since it is smaller than the sum of its proper divisors (62544139776).

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

25987027200 is a wasteful number, since it uses less digits than its factorization.

25987027200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43721 (or 43702 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 25987027200 in words is "twenty-five billion, nine hundred eighty-seven million, twenty-seven thousand, two hundred".