25381130488 has 32 divisors (see below), whose sum is σ = 54396720000. Its totient is φ = 10875910752.

The previous prime is 25381130461. The next prime is 25381130519. The reversal of 25381130488 is 88403118352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361263 + ... + 425761.

It is an arithmetic number, because the mean of its divisors is an integer number (1699897500).

Almost surely, 2^25381130488 is an apocalyptic number.

25381130488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25381130488 is an abundant number, since it is smaller than the sum of its proper divisors (29015589512).

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

25381130488 is a wasteful number, since it uses less digits than its factorization.

25381130488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71539 (or 71535 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 25381130488 in words is "twenty-five billion, three hundred eighty-one million, one hundred thirty thousand, four hundred eighty-eight".