527521 has 4 divisors (see below), whose sum is σ = 529200. Its totient is φ = 525844.

The previous prime is 527507. The next prime is 527533. The reversal of 527521 is 125725.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 527521 - 2⁵ = 527489 is a prime.

It is a Duffinian number.

527521 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 527492 and 527501.

It is not an unprimeable number, because it can be changed into a prime (527581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211 + ... + 1048.

It is an arithmetic number, because the mean of its divisors is an integer number (132300).

2⁵²⁷⁵²¹ is an apocalyptic number.

It is an amenable number.

527521 is a deficient number, since it is larger than the sum of its proper divisors (1679).

527521 is a wasteful number, since it uses less digits than its factorization.

527521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678.

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

The square root of 527521 is about 726.3064091690. The cubic root of 527521 is about 80.8003516797.

The spelling of 527521 in words is "five hundred twenty-seven thousand, five hundred twenty-one".