505352422439 has 2 divisors, whose sum is σ = 505352422440. Its totient is φ = 505352422438.

The previous prime is 505352422433. The next prime is 505352422493. The reversal of 505352422439 is 934224253505.

Together with next prime (505352422493) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505352422439 - 2¹⁶ = 505352356903 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505352422439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505352422433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252676211219 + 252676211220.

It is an arithmetic number, because the mean of its divisors is an integer number (252676211220).

Almost surely, 2^505352422439 is an apocalyptic number.

505352422439 is a deficient number, since it is larger than the sum of its proper divisors (1).

505352422439 is an equidigital number, since it uses as much as digits as its factorization.

505352422439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 505352422439 in words is "five hundred five billion, three hundred fifty-two million, four hundred twenty-two thousand, four hundred thirty-nine".