505291113 has 6 divisors (see below), whose sum is σ = 729864954. Its totient is φ = 336860736.

The previous prime is 505291097. The next prime is 505291133. The reversal of 505291113 is 311192505.

It can be written as a sum of positive squares in only one way, i.e., 444029184 + 61261929 = 21072^2 + 7827^2 .

It is not a de Polignac number, because 505291113 - 2⁴ = 505291097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505291133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28071720 + ... + 28071737.

It is an arithmetic number, because the mean of its divisors is an integer number (121644159).

Almost surely, 2^505291113 is an apocalyptic number.

It is an amenable number.

505291113 is a deficient number, since it is larger than the sum of its proper divisors (224573841).

505291113 is a wasteful number, since it uses less digits than its factorization.

505291113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56143463 (or 56143460 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 505291113 is about 22478.6813002898. The cubic root of 505291113 is about 796.4904140436.

The spelling of 505291113 in words is "five hundred five million, two hundred ninety-one thousand, one hundred thirteen".