505204542443 has 4 divisors (see below), whose sum is σ = 505311288048. Its totient is φ = 505097796840.

The previous prime is 505204542433. The next prime is 505204542457. The reversal of 505204542443 is 344245402505.

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 505204542443 - 2⁶ = 505204542379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505204542397 and 505204542406.

It is not an unprimeable number, because it can be changed into a prime (505204542433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53365703 + ... + 53375168.

It is an arithmetic number, because the mean of its divisors is an integer number (126327822012).

Almost surely, 2^505204542443 is an apocalyptic number.

505204542443 is a deficient number, since it is larger than the sum of its proper divisors (106745605).

505204542443 is a wasteful number, since it uses less digits than its factorization.

505204542443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106745604.

The product of its (nonzero) digits is 384000, while the sum is 38.

Adding to 505204542443 its reverse (344245402505), we get a palindrome (849449944948).

The spelling of 505204542443 in words is "five hundred five billion, two hundred four million, five hundred forty-two thousand, four hundred forty-three".