504435401 has 2 divisors, whose sum is σ = 504435402. Its totient is φ = 504435400.

The previous prime is 504435391. The next prime is 504435409. The reversal of 504435401 is 104534405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 351937600 + 152497801 = 18760^2 + 12349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504435401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (504435409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252217700 + 252217701.

It is an arithmetic number, because the mean of its divisors is an integer number (252217701).

Almost surely, 2^504435401 is an apocalyptic number.

It is an amenable number.

504435401 is a deficient number, since it is larger than the sum of its proper divisors (1).

504435401 is an equidigital number, since it uses as much as digits as its factorization.

504435401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 504435401 is about 22459.6393782269. The cubic root of 504435401 is about 796.0405403668.

Adding to 504435401 its reverse (104534405), we get a palindrome (608969806).

The spelling of 504435401 in words is "five hundred four million, four hundred thirty-five thousand, four hundred one".