25780371126725 has 48 divisors (see below), whose sum is σ = 33071292260160. Its totient is φ = 19923128064000.

The previous prime is 25780371126709. The next prime is 25780371126737. The reversal of 25780371126725 is 52762117308752.

It is a happy number.

It is not a de Polignac number, because 25780371126725 - 2⁴ = 25780371126709 is a prime.

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, 151217831 + ... + 151388219.

It is an arithmetic number, because the mean of its divisors is an integer number (688985255420).

Almost surely, 2^{25780371126725} is an apocalyptic number.

25780371126725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25780371126725 is a deficient number, since it is larger than the sum of its proper divisors (7290921133435).

25780371126725 is a wasteful number, since it uses less digits than its factorization.

25780371126725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171990 (or 171985 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 56.

The spelling of 25780371126725 in words is "twenty-five trillion, seven hundred eighty billion, three hundred seventy-one million, one hundred twenty-six thousand, seven hundred twenty-five".