505606615573 has 2 divisors, whose sum is σ = 505606615574. Its totient is φ = 505606615572.

The previous prime is 505606615543. The next prime is 505606615639. The reversal of 505606615573 is 375516606505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257944125924 + 247662489649 = 507882^2 + 497657^2 .

It is a cyclic number.

It is not a de Polignac number, because 505606615573 - 2⁵ = 505606615541 is a prime.

It is a super-2 number, since 2×505606615573² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505606615543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252803307786 + 252803307787.

It is an arithmetic number, because the mean of its divisors is an integer number (252803307787).

Almost surely, 2^505606615573 is an apocalyptic number.

It is an amenable number.

505606615573 is a deficient number, since it is larger than the sum of its proper divisors (1).

505606615573 is an equidigital number, since it uses as much as digits as its factorization.

505606615573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835000, while the sum is 49.

The spelling of 505606615573 in words is "five hundred five billion, six hundred six million, six hundred fifteen thousand, five hundred seventy-three".