505229553 has 6 divisors (see below), whose sum is σ = 729776034. Its totient is φ = 336819696.

The previous prime is 505229519. The next prime is 505229591. The reversal of 505229553 is 355922505.

505229553 is a `hidden beast` number, since 50 + 52 + 2 + 9 + 553 = 666.

It can be written as a sum of positive squares in only one way, i.e., 453562209 + 51667344 = 21297^2 + 7188^2 .

It is not a de Polignac number, because 505229553 - 2¹³ = 505221361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505229653) 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, 28068300 + ... + 28068317.

It is an arithmetic number, because the mean of its divisors is an integer number (121629339).

Almost surely, 2^505229553 is an apocalyptic number.

It is an amenable number.

505229553 is a deficient number, since it is larger than the sum of its proper divisors (224546481).

505229553 is a wasteful number, since it uses less digits than its factorization.

505229553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56136623 (or 56136620 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 505229553 is about 22477.3119611754. The cubic root of 505229553 is about 796.4580670526.

The spelling of 505229553 in words is "five hundred five million, two hundred twenty-nine thousand, five hundred fifty-three".