504021516 has 12 divisors (see below), whose sum is σ = 1176050232. Its totient is φ = 168007168.

The previous prime is 504021499. The next prime is 504021521. The reversal of 504021516 is 615120405.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21000885 + ... + 21000908.

It is an arithmetic number, because the mean of its divisors is an integer number (98004186).

Almost surely, 2^504021516 is an apocalyptic number.

It is an amenable number.

504021516 is an abundant number, since it is smaller than the sum of its proper divisors (672028716).

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

504021516 is a wasteful number, since it uses less digits than its factorization.

504021516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42001800 (or 42001798 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 504021516 is about 22450.4235149362. The cubic root of 504021516 is about 795.8227659413.

The spelling of 504021516 in words is "five hundred four million, twenty-one thousand, five hundred sixteen".