505823229 has 6 divisors (see below), whose sum is σ = 730633566. Its totient is φ = 337215480.

The previous prime is 505823221. The next prime is 505823237. The reversal of 505823229 is 922328505.

505823229 is a `hidden beast` number, since 50 + 582 + 3 + 2 + 29 = 666.

It is an interprime number because it is at equal distance from previous prime (505823221) and next prime (505823237).

It can be written as a sum of positive squares in only one way, i.e., 505575225 + 248004 = 22485^2 + 498^2 .

It is not a de Polignac number, because 505823229 - 2³ = 505823221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505823193 and 505823202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505823221) 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, 28101282 + ... + 28101299.

It is an arithmetic number, because the mean of its divisors is an integer number (121772261).

Almost surely, 2^505823229 is an apocalyptic number.

It is an amenable number.

505823229 is a deficient number, since it is larger than the sum of its proper divisors (224810337).

505823229 is a wasteful number, since it uses less digits than its factorization.

505823229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56202587 (or 56202584 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 505823229 is about 22490.5142004357. The cubic root of 505823229 is about 796.7699074512.

The spelling of 505823229 in words is "five hundred five million, eight hundred twenty-three thousand, two hundred twenty-nine".