25286493859 has 8 divisors (see below), whose sum is σ = 27587939328. Its totient is φ = 22985493960.

The previous prime is 25286493857. The next prime is 25286493887. The reversal of 25286493859 is 95839468252.

It is a happy number.

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

It is not a de Polignac number, because 25286493859 - 2¹ = 25286493857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25286493797 and 25286493806.

It is not an unprimeable number, because it can be changed into a prime (25286493857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13354 + ... + 225280.

It is an arithmetic number, because the mean of its divisors is an integer number (3448492416).

Almost surely, 2^25286493859 is an apocalyptic number.

25286493859 is a deficient number, since it is larger than the sum of its proper divisors (2301445469).

25286493859 is a wasteful number, since it uses less digits than its factorization.

25286493859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222785.

The product of its digits is 37324800, while the sum is 61.

The spelling of 25286493859 in words is "twenty-five billion, two hundred eighty-six million, four hundred ninety-three thousand, eight hundred fifty-nine".