25578112355 has 4 divisors (see below), whose sum is σ = 30693734832. Its totient is φ = 20462489880.

The previous prime is 25578112319. The next prime is 25578112361. The reversal of 25578112355 is 55321187552.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25578112355 - 2²⁴ = 25561335139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2557811231 + ... + 2557811240.

It is an arithmetic number, because the mean of its divisors is an integer number (7673433708).

Almost surely, 2^25578112355 is an apocalyptic number.

25578112355 is a deficient number, since it is larger than the sum of its proper divisors (5115622477).

25578112355 is an equidigital number, since it uses as much as digits as its factorization.

25578112355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5115622476.

The product of its digits is 420000, while the sum is 44.

The spelling of 25578112355 in words is "twenty-five billion, five hundred seventy-eight million, one hundred twelve thousand, three hundred fifty-five".