520774 has 4 divisors (see below), whose sum is σ = 781164. Its totient is φ = 260386.

The previous prime is 520763. The next prime is 520787. The reversal of 520774 is 477025.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130192 + ... + 130195.

It is an arithmetic number, because the mean of its divisors is an integer number (195291).

2⁵²⁰⁷⁷⁴ is an apocalyptic number.

520774 is a deficient number, since it is larger than the sum of its proper divisors (260390).

520774 is a wasteful number, since it uses less digits than its factorization.

520774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260389.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 520774 is about 721.6467279771. The cubic root of 520774 is about 80.4543933636.

Adding to 520774 its reverse (477025), we get a palindrome (997799).

The spelling of 520774 in words is "five hundred twenty thousand, seven hundred seventy-four".