25260287808 has 224 divisors, whose sum is σ = 81045913600. Its totient is φ = 6782662656.

The previous prime is 25260287719. The next prime is 25260287837. The reversal of 25260287808 is 80878206252.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3239178 + ... + 3246966.

Almost surely, 2^25260287808 is an apocalyptic number.

25260287808 is a gapful number since it is divisible by the number (28) 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 25260287808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40522956800).

25260287808 is an abundant number, since it is smaller than the sum of its proper divisors (55785625792).

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

25260287808 is a wasteful number, since it uses less digits than its factorization.

25260287808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7957 (or 7947 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 25260287808 in words is "twenty-five billion, two hundred sixty million, two hundred eighty-seven thousand, eight hundred eight".