25495876980 has 288 divisors, whose sum is σ = 93446438400. Its totient is φ = 5753389824.

The previous prime is 25495876969. The next prime is 25495877023. The reversal of 25495876980 is 8967859452.

25495876980 is a `hidden beast` number, since 2 + 5 + 49 + 587 + 6 + 9 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2084242 + ... + 2096438.

It is an arithmetic number, because the mean of its divisors is an integer number (324466800).

Almost surely, 2^25495876980 is an apocalyptic number.

25495876980 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 25495876980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46723219200).

25495876980 is an abundant number, since it is smaller than the sum of its proper divisors (67950561420).

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

25495876980 is a wasteful number, since it uses less digits than its factorization.

25495876980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12308 (or 12293 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 25495876980 in words is "twenty-five billion, four hundred ninety-five million, eight hundred seventy-six thousand, nine hundred eighty".