505506265723 has 16 divisors (see below), whose sum is σ = 525542436864. Its totient is φ = 485714969280.

The previous prime is 505506265721. The next prime is 505506265741. The reversal of 505506265723 is 327562605505.

It is a cyclic number.

It is not a de Polignac number, because 505506265723 - 2¹ = 505506265721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505506265721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2484711 + ... + 2680447.

It is an arithmetic number, because the mean of its divisors is an integer number (32846402304).

Almost surely, 2^505506265723 is an apocalyptic number.

505506265723 is a deficient number, since it is larger than the sum of its proper divisors (20036171141).

505506265723 is a wasteful number, since it uses less digits than its factorization.

505506265723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196362.

The product of its (nonzero) digits is 1890000, while the sum is 46.

The spelling of 505506265723 in words is "five hundred five billion, five hundred six million, two hundred sixty-five thousand, seven hundred twenty-three".