505000031205 has 48 divisors (see below), whose sum is σ = 826235337600. Its totient is φ = 263386393728.

The previous prime is 505000031203. The next prime is 505000031227. The reversal of 505000031205 is 502130000505.

It is not a de Polignac number, because 505000031205 - 2¹ = 505000031203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505000031203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45289971 + ... + 45301119.

It is an arithmetic number, because the mean of its divisors is an integer number (17213236200).

Almost surely, 2^505000031205 is an apocalyptic number.

It is an amenable number.

505000031205 is a deficient number, since it is larger than the sum of its proper divisors (321235306395).

505000031205 is a wasteful number, since it uses less digits than its factorization.

505000031205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12618 (or 12571 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The spelling of 505000031205 in words is "five hundred five billion, thirty-one thousand, two hundred five".