505094500517 has 4 divisors (see below), whose sum is σ = 506086828140. Its totient is φ = 504102172896.

The previous prime is 505094500499. The next prime is 505094500541. The reversal of 505094500517 is 715005490505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 469134584356 + 35959916161 = 684934^2 + 189631^2 .

It is a cyclic number.

It is not a de Polignac number, because 505094500517 - 2¹⁸ = 505094238373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505094500717) 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, 496163048 + ... + 496164065.

It is an arithmetic number, because the mean of its divisors is an integer number (126521707035).

Almost surely, 2^505094500517 is an apocalyptic number.

It is an amenable number.

505094500517 is a deficient number, since it is larger than the sum of its proper divisors (992327623).

505094500517 is an equidigital number, since it uses as much as digits as its factorization.

505094500517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992327622.

The product of its (nonzero) digits is 157500, while the sum is 41.

The spelling of 505094500517 in words is "five hundred five billion, ninety-four million, five hundred thousand, five hundred seventeen".