25243313435 has 4 divisors (see below), whose sum is σ = 30291976128. Its totient is φ = 20194650744.

The previous prime is 25243313401. The next prime is 25243313453. The reversal of 25243313435 is 53431334252.

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

It is a cyclic number.

It is not a de Polignac number, because 25243313435 - 2¹² = 25243309339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25243313395 and 25243313404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2524331339 + ... + 2524331348.

It is an arithmetic number, because the mean of its divisors is an integer number (7572994032).

Almost surely, 2^25243313435 is an apocalyptic number.

25243313435 is a deficient number, since it is larger than the sum of its proper divisors (5048662693).

25243313435 is an equidigital number, since it uses as much as digits as its factorization.

25243313435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048662692.

The product of its digits is 129600, while the sum is 35.

Adding to 25243313435 its reverse (53431334252), we get a palindrome (78674647687).

The spelling of 25243313435 in words is "twenty-five billion, two hundred forty-three million, three hundred thirteen thousand, four hundred thirty-five".