520574 has 16 divisors (see below), whose sum is σ = 843696. Its totient is φ = 240000.

The previous prime is 520571. The next prime is 520589. The reversal of 520574 is 475025.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1949 + ... + 2199.

It is an arithmetic number, because the mean of its divisors is an integer number (52731).

2⁵²⁰⁵⁷⁴ is an apocalyptic number.

520574 is a deficient number, since it is larger than the sum of its proper divisors (323122).

520574 is a wasteful number, since it uses less digits than its factorization.

520574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 520574 is about 721.5081427122. The cubic root of 520574 is about 80.4440927092. Note that the first 3 decimals are identical.

Adding to 520574 its reverse (475025), we get a palindrome (995599).

The spelling of 520574 in words is "five hundred twenty thousand, five hundred seventy-four".