505981760 has 28 divisors (see below), whose sum is σ = 1204869828. Its totient is φ = 202392576.

The previous prime is 505981759. The next prime is 505981781. The reversal of 505981760 is 67189505.

It can be written as a sum of positive squares in 2 ways, for example, as 364657216 + 141324544 = 19096^2 + 11888^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790277 + ... + 790916.

Almost surely, 2^505981760 is an apocalyptic number.

It is an amenable number.

505981760 is an abundant number, since it is smaller than the sum of its proper divisors (698888068).

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

505981760 is a wasteful number, since it uses less digits than its factorization.

505981760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581210 (or 1581200 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 505981760 is about 22494.0383212975. The cubic root of 505981760 is about 796.8531378034.

The spelling of 505981760 in words is "five hundred five million, nine hundred eighty-one thousand, seven hundred sixty".