500551129 has 9 divisors (see below), whose sum is σ = 542332029. Its totient is φ = 461778720.

The previous prime is 500551123. The next prime is 500551151. The reversal of 500551129 is 921155005.

The square root of 500551129 is 22373.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 10017225 + 490533904 = 3165^2 + 22148^2 .

It is not a de Polignac number, because 500551129 - 2¹¹ = 500549081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 500551097 and 500551106.

It is not an unprimeable number, because it can be changed into a prime (500551123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 289989 + ... + 291709.

Almost surely, 2^500551129 is an apocalyptic number.

500551129 is the 22373-rd square number.

500551129 is the 11187-th centered octagonal number.

It is an amenable number.

500551129 is a deficient number, since it is larger than the sum of its proper divisors (41780900).

500551129 is an frugal number, since it uses more digits than its factorization.

500551129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468 (or 1734 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 28.

The cubic root of 500551129 is about 793.9920398206.

The spelling of 500551129 in words is "five hundred million, five hundred fifty-one thousand, one hundred twenty-nine".