521027 has 6 divisors (see below), whose sum is σ = 564372. Its totient is φ = 480792.

The previous prime is 521023. The next prime is 521039. The reversal of 521027 is 720125.

It is not a de Polignac number, because 521027 - 2² = 521023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520996 and 521014.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 521027.

It is not an unprimeable number, because it can be changed into a prime (521021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1373 + ... + 1710.

It is an arithmetic number, because the mean of its divisors is an integer number (94062).

2⁵²¹⁰²⁷ is an apocalyptic number.

521027 is a deficient number, since it is larger than the sum of its proper divisors (43345).

521027 is a wasteful number, since it uses less digits than its factorization.

521027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109 (or 3096 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 521027 is about 721.8220002189. The cubic root of 521027 is about 80.4674199139.

The spelling of 521027 in words is "five hundred twenty-one thousand, twenty-seven".