25243322345 has 8 divisors (see below), whose sum is σ = 30300945480. Its totient is φ = 20188685440.

The previous prime is 25243322323. The next prime is 25243322359. The reversal of 25243322345 is 54322334252.

It can be written as a sum of positive squares in 4 ways, for example, as 10933420969 + 14309901376 = 104563^2 + 119624^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-25243322345 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727916 + ... + 761805.

It is an arithmetic number, because the mean of its divisors is an integer number (3787618185).

Almost surely, 2^25243322345 is an apocalyptic number.

It is an amenable number.

25243322345 is a deficient number, since it is larger than the sum of its proper divisors (5057623135).

25243322345 is a wasteful number, since it uses less digits than its factorization.

25243322345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493115.

The product of its digits is 172800, while the sum is 35.

Adding to 25243322345 its reverse (54322334252), we get a palindrome (79565656597).

The spelling of 25243322345 in words is "twenty-five billion, two hundred forty-three million, three hundred twenty-two thousand, three hundred forty-five".