505345266 has 48 divisors (see below), whose sum is σ = 1123593120. Its totient is φ = 164088960.

The previous prime is 505345241. The next prime is 505345277. The reversal of 505345266 is 662543505.

It is a happy number.

505345266 is a `hidden beast` number, since 50 + 5 + 345 + 266 = 666.

It is a super-2 number, since 2×505345266² = 510747675737221512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 505345266.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117901 + ... + 122111.

It is an arithmetic number, because the mean of its divisors is an integer number (23408190).

Almost surely, 2^505345266 is an apocalyptic number.

505345266 is an abundant number, since it is smaller than the sum of its proper divisors (618247854).

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

505345266 is a wasteful number, since it uses less digits than its factorization.

505345266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391 (or 4388 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 505345266 is about 22479.8858093185. The cubic root of 505345266 is about 796.5188668196.

The spelling of 505345266 in words is "five hundred five million, three hundred forty-five thousand, two hundred sixty-six".