505605712 has 10 divisors (see below), whose sum is σ = 979611098. Its totient is φ = 252802848.

The previous prime is 505605677. The next prime is 505605733. The reversal of 505605712 is 217506505.

It can be written as a sum of positive squares in only one way, i.e., 324864576 + 180741136 = 18024^2 + 13444^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15800163 + ... + 15800194.

Almost surely, 2^505605712 is an apocalyptic number.

It is an amenable number.

505605712 is a deficient number, since it is larger than the sum of its proper divisors (474005386).

505605712 is a wasteful number, since it uses less digits than its factorization.

505605712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31600365 (or 31600359 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 505605712 is about 22485.6779306295. The cubic root of 505605712 is about 796.6556805575.

The spelling of 505605712 in words is "five hundred five million, six hundred five thousand, seven hundred twelve".