505501723 has 2 divisors, whose sum is σ = 505501724. Its totient is φ = 505501722.

The previous prime is 505501691. The next prime is 505501739. The reversal of 505501723 is 327105505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505501723 - 2⁵ = 505501691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505501691 and 505501700.

It is not a weakly prime, because it can be changed into another prime (505504723) 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, 252750861 + 252750862.

It is an arithmetic number, because the mean of its divisors is an integer number (252750862).

Almost surely, 2^505501723 is an apocalyptic number.

505501723 is a deficient number, since it is larger than the sum of its proper divisors (1).

505501723 is an equidigital number, since it uses as much as digits as its factorization.

505501723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 505501723 is about 22483.3654731670. The cubic root of 505501723 is about 796.6010601911.

The spelling of 505501723 in words is "five hundred five million, five hundred one thousand, seven hundred twenty-three".