505771673 has 4 divisors (see below), whose sum is σ = 551750928. Its totient is φ = 459792420.

The previous prime is 505771661. The next prime is 505771681. The reversal of 505771673 is 376177505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 505771673 - 2²⁰ = 504723097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 505771673.

It is not an unprimeable number, because it can be changed into a prime (505771073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22989611 + ... + 22989632.

It is an arithmetic number, because the mean of its divisors is an integer number (137937732).

Almost surely, 2^505771673 is an apocalyptic number.

It is an amenable number.

505771673 is a deficient number, since it is larger than the sum of its proper divisors (45979255).

505771673 is a wasteful number, since it uses less digits than its factorization.

505771673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45979254.

The product of its (nonzero) digits is 154350, while the sum is 41.

The square root of 505771673 is about 22489.3679991235. The cubic root of 505771673 is about 796.7428362909.

The spelling of 505771673 in words is "five hundred five million, seven hundred seventy-one thousand, six hundred seventy-three".