505087299 has 16 divisors (see below), whose sum is σ = 753239040. Its totient is φ = 334492200.

The previous prime is 505087283. The next prime is 505087307. The reversal of 505087299 is 992780505.

It is a happy number.

505087299 is a `hidden beast` number, since 50 + 508 + 7 + 2 + 99 = 666.

It is not a de Polignac number, because 505087299 - 2⁴ = 505087283 is a prime.

It is a super-2 number, since 2×505087299² = 510226359222230802, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (505087249) 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, 57867 + ... + 66020.

It is an arithmetic number, because the mean of its divisors is an integer number (47077440).

Almost surely, 2^505087299 is an apocalyptic number.

505087299 is a deficient number, since it is larger than the sum of its proper divisors (248151741).

505087299 is a wasteful number, since it uses less digits than its factorization.

505087299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124047 (or 124041 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 505087299 is about 22474.1473475636. The cubic root of 505087299 is about 796.3833089679.

The spelling of 505087299 in words is "five hundred five million, eighty-seven thousand, two hundred ninety-nine".