20225242339 has 4 divisors (see below), whose sum is σ = 20695596856. Its totient is φ = 19754887824.

The previous prime is 20225242333. The next prime is 20225242357. The reversal of 20225242339 is 93324252202.

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 20225242339 - 2⁵ = 20225242307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20225242333) 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 3 ways as a sum of consecutive naturals, for example, 235177194 + ... + 235177279.

It is an arithmetic number, because the mean of its divisors is an integer number (5173899214).

Almost surely, 2^20225242339 is an apocalyptic number.

20225242339 is a deficient number, since it is larger than the sum of its proper divisors (470354517).

20225242339 is an equidigital number, since it uses as much as digits as its factorization.

20225242339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470354516.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 20225242339 in words is "twenty billion, two hundred twenty-five million, two hundred forty-two thousand, three hundred thirty-nine".