25872143441 has 4 divisors (see below), whose sum is σ = 25873092672. Its totient is φ = 25871194212.

The previous prime is 25872143417. The next prime is 25872143567. The reversal of 25872143441 is 14434127852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25872143441 - 2²² = 25867949137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25872145441) 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 3 ways as a sum of consecutive naturals, for example, 432485 + ... + 488658.

It is an arithmetic number, because the mean of its divisors is an integer number (6468273168).

Almost surely, 2^25872143441 is an apocalyptic number.

It is an amenable number.

25872143441 is a deficient number, since it is larger than the sum of its proper divisors (949231).

25872143441 is an equidigital number, since it uses as much as digits as its factorization.

25872143441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949230.

The product of its digits is 215040, while the sum is 41.

The spelling of 25872143441 in words is "twenty-five billion, eight hundred seventy-two million, one hundred forty-three thousand, four hundred forty-one".