521527 has 2 divisors, whose sum is σ = 521528. Its totient is φ = 521526.

The previous prime is 521519. The next prime is 521533. The reversal of 521527 is 725125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 521527 - 2³ = 521519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 521498 and 521507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (521537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260763 + 260764.

It is an arithmetic number, because the mean of its divisors is an integer number (260764).

2⁵²¹⁵²⁷ is an apocalyptic number.

521527 is a deficient number, since it is larger than the sum of its proper divisors (1).

521527 is an equidigital number, since it uses as much as digits as its factorization.

521527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 700, while the sum is 22.

The square root of 521527 is about 722.1682629415. The cubic root of 521527 is about 80.4931516878.

The spelling of 521527 in words is "five hundred twenty-one thousand, five hundred twenty-seven".