25243313434 has 8 divisors (see below), whose sum is σ = 37915391808. Its totient is φ = 12604849500.

The previous prime is 25243313401. The next prime is 25243313453. The reversal of 25243313434 is 43431334252.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25243313434.

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, 8401732 + ... + 8404735.

It is an arithmetic number, because the mean of its divisors is an integer number (4739423976).

Almost surely, 2^25243313434 is an apocalyptic number.

25243313434 is a deficient number, since it is larger than the sum of its proper divisors (12672078374).

25243313434 is a wasteful number, since it uses less digits than its factorization.

25243313434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16807220.

The product of its digits is 103680, while the sum is 34.

Adding to 25243313434 its reverse (43431334252), we get a palindrome (68674647686).

The spelling of 25243313434 in words is "twenty-five billion, two hundred forty-three million, three hundred thirteen thousand, four hundred thirty-four".