505206260 has 24 divisors (see below), whose sum is σ = 1142543976. Its totient is φ = 186537600.

The previous prime is 505206253. The next prime is 505206281. The reversal of 505206260 is 62602505.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59320804 + 445885456 = 7702^2 + 21116^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971291 + ... + 971810.

It is an arithmetic number, because the mean of its divisors is an integer number (47605999).

Almost surely, 2^505206260 is an apocalyptic number.

It is an amenable number.

505206260 is an abundant number, since it is smaller than the sum of its proper divisors (637337716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505206260 is a wasteful number, since it uses less digits than its factorization.

505206260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943123 (or 1943121 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 505206260 is about 22476.7938105060. The cubic root of 505206260 is about 796.4458269512.

Adding to 505206260 its reverse (62602505), we get a palindrome (567808765).

The spelling of 505206260 in words is "five hundred five million, two hundred six thousand, two hundred sixty".