505021266 has 24 divisors (see below), whose sum is σ = 1094655744. Its totient is φ = 168272280.

The previous prime is 505021249. The next prime is 505021289. The reversal of 505021266 is 662120505.

It is a super-2 number, since 2×505021266² = 510092958224485512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61495 + ... + 69221.

It is an arithmetic number, because the mean of its divisors is an integer number (45610656).

Almost surely, 2^505021266 is an apocalyptic number.

505021266 is an abundant number, since it is smaller than the sum of its proper divisors (589634478).

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

505021266 is a wasteful number, since it uses less digits than its factorization.

505021266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11366 (or 11363 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 505021266 is about 22472.6782115528. The cubic root of 505021266 is about 796.3486021815.

The spelling of 505021266 in words is "five hundred five million, twenty-one thousand, two hundred sixty-six".