504504401 has 2 divisors, whose sum is σ = 504504402. Its totient is φ = 504504400.

The previous prime is 504504367. The next prime is 504504443. The reversal of 504504401 is 104405405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 495018001 + 9486400 = 22249^2 + 3080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504504401 is a prime.

It is not a weakly prime, because it can be changed into another prime (504504001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252252200 + 252252201.

It is an arithmetic number, because the mean of its divisors is an integer number (252252201).

Almost surely, 2^504504401 is an apocalyptic number.

It is an amenable number.

504504401 is a deficient number, since it is larger than the sum of its proper divisors (1).

504504401 is an equidigital number, since it uses as much as digits as its factorization.

504504401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 504504401 is about 22461.1754144791. The cubic root of 504504401 is about 796.0768346032.

Adding to 504504401 its reverse (104405405), we get a palindrome (608909806).

The spelling of 504504401 in words is "five hundred four million, five hundred four thousand, four hundred one".