506317780 has 24 divisors (see below), whose sum is σ = 1077835752. Its totient is φ = 199752192.

The previous prime is 506317759. The next prime is 506317807. The reversal of 506317780 is 87713605.

It can be written as a sum of positive squares in 4 ways, for example, as 427716 + 505890064 = 654^2 + 22492^2 .

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, 171937 + ... + 174856.

It is an arithmetic number, because the mean of its divisors is an integer number (44909823).

Almost surely, 2^506317780 is an apocalyptic number.

It is an amenable number.

506317780 is an abundant number, since it is smaller than the sum of its proper divisors (571517972).

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

506317780 is a wasteful number, since it uses less digits than its factorization.

506317780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346875 (or 346873 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 506317780 is about 22501.5061718099. The cubic root of 506317780 is about 797.0294941875.

The spelling of 506317780 in words is "five hundred six million, three hundred seventeen thousand, seven hundred eighty".