505492131 has 16 divisors (see below), whose sum is σ = 715059200. Its totient is φ = 316739808.

The previous prime is 505492129. The next prime is 505492139. The reversal of 505492131 is 131294505.

It is not a de Polignac number, because 505492131 - 2¹ = 505492129 is a prime.

It is a super-2 number, since 2×505492131² = 511044589005842322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505492139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27676 + ... + 42153.

It is an arithmetic number, because the mean of its divisors is an integer number (44691200).

Almost surely, 2^505492131 is an apocalyptic number.

505492131 is a deficient number, since it is larger than the sum of its proper divisors (209567069).

505492131 is a wasteful number, since it uses less digits than its factorization.

505492131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69978.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 505492131 is about 22483.1521588944. The cubic root of 505492131 is about 796.5960216024.

The spelling of 505492131 in words is "five hundred five million, four hundred ninety-two thousand, one hundred thirty-one".