25731130880 has 480 divisors, whose sum is σ = 79937383680. Its totient is φ = 7865303040.

The previous prime is 25731130877. The next prime is 25731130903. The reversal of 25731130880 is 8803113752.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50552066 + ... + 50552574.

It is an arithmetic number, because the mean of its divisors is an integer number (166536216).

Almost surely, 2^25731130880 is an apocalyptic number.

25731130880 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 25731130880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39968691840).

25731130880 is an abundant number, since it is smaller than the sum of its proper divisors (54206252800).

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

25731130880 is a wasteful number, since it uses less digits than its factorization.

25731130880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 25731130880 in words is "twenty-five billion, seven hundred thirty-one million, one hundred thirty thousand, eight hundred eighty".