25254840980 has 24 divisors (see below), whose sum is σ = 53120870880. Its totient is φ = 10085611680.

The previous prime is 25254840931. The next prime is 25254840991. The reversal of 25254840980 is 8904845252.

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, 1007606 + ... + 1032365.

It is an arithmetic number, because the mean of its divisors is an integer number (2213369620).

Almost surely, 2^25254840980 is an apocalyptic number.

25254840980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25254840980 is an abundant number, since it is smaller than the sum of its proper divisors (27866029900).

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

25254840980 is a wasteful number, since it uses less digits than its factorization.

25254840980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040599 (or 2040597 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 47.

The spelling of 25254840980 in words is "twenty-five billion, two hundred fifty-four million, eight hundred forty thousand, nine hundred eighty".