521104 has 10 divisors (see below), whose sum is σ = 1009670. Its totient is φ = 260544.

The previous prime is 521063. The next prime is 521107. The reversal of 521104 is 401125.

It can be written as a sum of positive squares in only one way, i.e., 518400 + 2704 = 720^2 + 52^2 .

It is not an unprimeable number, because it can be changed into a prime (521107) by changing a digit.

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, 16269 + ... + 16300.

It is an arithmetic number, because the mean of its divisors is an integer number (100967).

2⁵²¹¹⁰⁴ is an apocalyptic number.

It is an amenable number.

521104 is a deficient number, since it is larger than the sum of its proper divisors (488566).

521104 is a wasteful number, since it uses less digits than its factorization.

521104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32577 (or 32571 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 521104 is about 721.8753354978. The cubic root of 521104 is about 80.4713836792.

Adding to 521104 its reverse (401125), we get a palindrome (922229).

It can be divided in two parts, 521 and 104, that added together give a 4-th power (625 = 5⁴).

The spelling of 521104 in words is "five hundred twenty-one thousand, one hundred four".