504261257399 has 2 divisors, whose sum is σ = 504261257400. Its totient is φ = 504261257398.

The previous prime is 504261257359. The next prime is 504261257413. The reversal of 504261257399 is 993752162405.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504261257399 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 504261257399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504261257309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252130628699 + 252130628700.

It is an arithmetic number, because the mean of its divisors is an integer number (252130628700).

Almost surely, 2^504261257399 is an apocalyptic number.

504261257399 is a deficient number, since it is larger than the sum of its proper divisors (1).

504261257399 is an equidigital number, since it uses as much as digits as its factorization.

504261257399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 504261257399 in words is "five hundred four billion, two hundred sixty-one million, two hundred fifty-seven thousand, three hundred ninety-nine".