503322666 has 64 divisors (see below), whose sum is σ = 1298350080. Its totient is φ = 126221760.

The previous prime is 503322661. The next prime is 503322691. The reversal of 503322666 is 666223305.

It is a super-2 number, since 2×503322666² = 506667412218695112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (503322661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5386 + ... + 32181.

It is an arithmetic number, because the mean of its divisors is an integer number (20286720).

Almost surely, 2^503322666 is an apocalyptic number.

503322666 is an abundant number, since it is smaller than the sum of its proper divisors (795027414).

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

503322666 is a wasteful number, since it uses less digits than its factorization.

503322666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37619.

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 503322666 is about 22434.8538216767. The cubic root of 503322666 is about 795.4547803372.

The spelling of 503322666 in words is "five hundred three million, three hundred twenty-two thousand, six hundred sixty-six".