504240505 has 8 divisors (see below), whose sum is σ = 608587272. Its totient is φ = 401059968.

The previous prime is 504240493. The next prime is 504240559. The reversal of 504240505 is 505042405.

It can be written as a sum of positive squares in 4 ways, for example, as 214798336 + 289442169 = 14656^2 + 17013^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504240505 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 504240505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290604 + ... + 292333.

It is an arithmetic number, because the mean of its divisors is an integer number (76073409).

Almost surely, 2^504240505 is an apocalyptic number.

It is an amenable number.

504240505 is a deficient number, since it is larger than the sum of its proper divisors (104346767).

504240505 is a wasteful number, since it uses less digits than its factorization.

504240505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583115.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 504240505 is about 22455.3001538612. The cubic root of 504240505 is about 795.9380065227.

The spelling of 504240505 in words is "five hundred four million, two hundred forty thousand, five hundred five".