521055 has 12 divisors (see below), whose sum is σ = 903240. Its totient is φ = 277872.

The previous prime is 521051. The next prime is 521063. The reversal of 521055 is 550125.

It is not a de Polignac number, because 521055 - 2² = 521051 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 521055.

It is not an unprimeable number, because it can be changed into a prime (521051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5745 + ... + 5834.

It is an arithmetic number, because the mean of its divisors is an integer number (75270).

2⁵²¹⁰⁵⁵ is an apocalyptic number.

521055 is a deficient number, since it is larger than the sum of its proper divisors (382185).

521055 is a wasteful number, since it uses less digits than its factorization.

521055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11590 (or 11587 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 521055 is about 721.8413953217. The cubic root of 521055 is about 80.4688613283.

The spelling of 521055 in words is "five hundred twenty-one thousand, fifty-five".