505660316 has 48 divisors (see below), whose sum is σ = 1025848320. Its totient is φ = 213624000.

The previous prime is 505660303. The next prime is 505660381. The reversal of 505660316 is 613066505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672941 + ... + 673691.

It is an arithmetic number, because the mean of its divisors is an integer number (21371840).

Almost surely, 2^505660316 is an apocalyptic number.

It is an amenable number.

505660316 is an abundant number, since it is smaller than the sum of its proper divisors (520188004).

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

505660316 is a wasteful number, since it uses less digits than its factorization.

505660316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074 (or 1072 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 505660316 is about 22486.8920929505. The cubic root of 505660316 is about 796.6843583855.

The spelling of 505660316 in words is "five hundred five million, six hundred sixty thousand, three hundred sixteen".