504545401 has 2 divisors, whose sum is σ = 504545402. Its totient is φ = 504545400.

The previous prime is 504545389. The next prime is 504545417. The reversal of 504545401 is 104545405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503778025 + 767376 = 22445^2 + 876^2 .

It is a cyclic number.

It is not a de Polignac number, because 504545401 - 2⁵ = 504545369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 504545401.

It is not a weakly prime, because it can be changed into another prime (504545201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252272700 + 252272701.

It is an arithmetic number, because the mean of its divisors is an integer number (252272701).

Almost surely, 2^504545401 is an apocalyptic number.

It is an amenable number.

504545401 is a deficient number, since it is larger than the sum of its proper divisors (1).

504545401 is an equidigital number, since it uses as much as digits as its factorization.

504545401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 504545401 is about 22462.0880819215. The cubic root of 504545401 is about 796.0983991763.

It can be divided in two parts, 50454 and 5401, that added together give a palindrome (55855).

The spelling of 504545401 in words is "five hundred four million, five hundred forty-five thousand, four hundred one".