505532527805 has 4 divisors (see below), whose sum is σ = 606639033372. Its totient is φ = 404426022240.

The previous prime is 505532527781. The next prime is 505532527859. The reversal of 505532527805 is 508725235505.

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 168439651396 + 337092876409 = 410414^2 + 580597^2 .

It is a de Polignac number, because none of the positive numbers 2^k-505532527805 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505532527805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50553252776 + ... + 50553252785.

It is an arithmetic number, because the mean of its divisors is an integer number (151659758343).

Almost surely, 2^505532527805 is an apocalyptic number.

It is an amenable number.

505532527805 is a deficient number, since it is larger than the sum of its proper divisors (101106505567).

505532527805 is a wasteful number, since it uses less digits than its factorization.

505532527805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101106505566.

The product of its (nonzero) digits is 2100000, while the sum is 47.

The spelling of 505532527805 in words is "five hundred five billion, five hundred thirty-two million, five hundred twenty-seven thousand, eight hundred five".