504900013 has 2 divisors, whose sum is σ = 504900014. Its totient is φ = 504900012.

The previous prime is 504899999. The next prime is 504900029. The reversal of 504900013 is 310009405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 337016164 + 167883849 = 18358^2 + 12957^2 .

It is a cyclic number.

It is not a de Polignac number, because 504900013 - 2¹⁷ = 504768941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504900413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252450006 + 252450007.

It is an arithmetic number, because the mean of its divisors is an integer number (252450007).

Almost surely, 2^504900013 is an apocalyptic number.

It is an amenable number.

504900013 is a deficient number, since it is larger than the sum of its proper divisors (1).

504900013 is an equidigital number, since it uses as much as digits as its factorization.

504900013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 504900013 is about 22469.9802625637. The cubic root of 504900013 is about 796.2848640168.

Adding to 504900013 its reverse (310009405), we get a palindrome (814909418).

The spelling of 504900013 in words is "five hundred four million, nine hundred thousand, thirteen".