505061280 has 72 divisors (see below), whose sum is σ = 1723526532. Its totient is φ = 134682624.

The previous prime is 505061243. The next prime is 505061281. The reversal of 505061280 is 82160505.

It can be written as a sum of positive squares in 2 ways, for example, as 478559376 + 26501904 = 21876^2 + 5148^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (505061281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173929 + ... + 176808.

Almost surely, 2^505061280 is an apocalyptic number.

It is an amenable number.

505061280 is an abundant number, since it is smaller than the sum of its proper divisors (1218465252).

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

505061280 is a wasteful number, since it uses less digits than its factorization.

505061280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350758 (or 350747 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 505061280 is about 22473.5684749886. The cubic root of 505061280 is about 796.3696338051.

The spelling of 505061280 in words is "five hundred five million, sixty-one thousand, two hundred eighty".