20258255339 has 8 divisors (see below), whose sum is σ = 23154758880. Its totient is φ = 17362368576.

The previous prime is 20258255333. The next prime is 20258255357. The reversal of 20258255339 is 93355285202.

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-20258255339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20258255339.

It is not an unprimeable number, because it can be changed into a prime (20258255333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81524 + ... + 217169.

It is an arithmetic number, because the mean of its divisors is an integer number (2894344860).

Almost surely, 2^20258255339 is an apocalyptic number.

20258255339 is a deficient number, since it is larger than the sum of its proper divisors (2896503541).

20258255339 is an equidigital number, since it uses as much as digits as its factorization.

20258255339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308389.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 20258255339 in words is "twenty billion, two hundred fifty-eight million, two hundred fifty-five thousand, three hundred thirty-nine".