505000505473 has 2 divisors, whose sum is σ = 505000505474. Its totient is φ = 505000505472.

The previous prime is 505000505441. The next prime is 505000505519. The reversal of 505000505473 is 374505000505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 502550552464 + 2449953009 = 708908^2 + 49497^2 .

It is a cyclic number.

It is not a de Polignac number, because 505000505473 - 2⁵ = 505000505441 is a prime.

It is not a weakly prime, because it can be changed into another prime (505000505773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252500252736 + 252500252737.

It is an arithmetic number, because the mean of its divisors is an integer number (252500252737).

Almost surely, 2^505000505473 is an apocalyptic number.

It is an amenable number.

505000505473 is a deficient number, since it is larger than the sum of its proper divisors (1).

505000505473 is an equidigital number, since it uses as much as digits as its factorization.

505000505473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52500, while the sum is 34.

Adding to 505000505473 its reverse (374505000505), we get a palindrome (879505505978).

The spelling of 505000505473 in words is "five hundred five billion, five hundred five thousand, four hundred seventy-three".