505893 has 4 divisors (see below), whose sum is σ = 674528. Its totient is φ = 337260.

The previous prime is 505877. The next prime is 505907. The reversal of 505893 is 398505.

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 not a de Polignac number, because 505893 - 2⁴ = 505877 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505823) 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, 84313 + ... + 84318.

It is an arithmetic number, because the mean of its divisors is an integer number (168632).

2⁵⁰⁵⁸⁹³ is an apocalyptic number.

It is an amenable number.

505893 is a deficient number, since it is larger than the sum of its proper divisors (168635).

505893 is a wasteful number, since it uses less digits than its factorization.

505893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168634.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 505893 is about 711.2615552664. The cubic root of 505893 is about 79.6806540063.

It can be divided in two parts, 5058 and 93, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 505893 in words is "five hundred five thousand, eight hundred ninety-three".