25876240257 has 8 divisors (see below), whose sum is σ = 39430461376. Its totient is φ = 14786422992.

The previous prime is 25876240207. The next prime is 25876240259. The reversal of 25876240257 is 75204267852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25876240257 - 2¹¹ = 25876238209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25876240259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616100938 + ... + 616100979.

It is an arithmetic number, because the mean of its divisors is an integer number (4928807672).

Almost surely, 2^25876240257 is an apocalyptic number.

It is an amenable number.

25876240257 is a deficient number, since it is larger than the sum of its proper divisors (13554221119).

25876240257 is a wasteful number, since it uses less digits than its factorization.

25876240257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232201927.

The product of its (nonzero) digits is 1881600, while the sum is 48.

The spelling of 25876240257 in words is "twenty-five billion, eight hundred seventy-six million, two hundred forty thousand, two hundred fifty-seven".