505204542433 has 2 divisors, whose sum is σ = 505204542434. Its totient is φ = 505204542432.

The previous prime is 505204542407. The next prime is 505204542457. The reversal of 505204542433 is 334245402505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 463901296609 + 41303245824 = 681103^2 + 203232^2 .

It is a cyclic number.

It is not a de Polignac number, because 505204542433 - 2⁹ = 505204541921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505204542392 and 505204542401.

It is not a weakly prime, because it can be changed into another prime (505294542433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252602271216 + 252602271217.

It is an arithmetic number, because the mean of its divisors is an integer number (252602271217).

Almost surely, 2^505204542433 is an apocalyptic number.

It is an amenable number.

505204542433 is a deficient number, since it is larger than the sum of its proper divisors (1).

505204542433 is an equidigital number, since it uses as much as digits as its factorization.

505204542433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 37.

Adding to 505204542433 its reverse (334245402505), we get a palindrome (839449944938).

The spelling of 505204542433 in words is "five hundred five billion, two hundred four million, five hundred forty-two thousand, four hundred thirty-three".