25708743203641 has 3 divisors (see below), whose sum is σ = 25708748274021. Its totient is φ = 25708738133262.

The previous prime is 25708743203593. The next prime is 25708743203687. The reversal of 25708743203641 is 14630234780752.

The square root of 25708743203641 is 5070379.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 25708743203641 - 2²⁵ = 25708709649209 is a prime.

It is a super-2 number, since 2×25708743203641² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25708743243641) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2535190 + ... + 7605568.

It is an arithmetic number, because the mean of its divisors is an integer number (8569582758007).

Almost surely, 2^{25708743203641} is an apocalyptic number.

25708743203641 is the 5070379-th square number.

25708743203641 is the 2535190-th centered octagonal number.

It is an amenable number.

25708743203641 is a deficient number, since it is larger than the sum of its proper divisors (5070380).

25708743203641 is an frugal number, since it uses more digits than its factorization.

25708743203641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10140758 (or 5070379 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 52.

The spelling of 25708743203641 in words is "twenty-five trillion, seven hundred eight billion, seven hundred forty-three million, two hundred three thousand, six hundred forty-one".