526521 has 8 divisors (see below), whose sum is σ = 705600. Its totient is φ = 349232.

The previous prime is 526511. The next prime is 526531. The reversal of 526521 is 125625.

It is an interprime number because it is at equal distance from previous prime (526511) and next prime (526531).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 526521 - 2¹⁴ = 510137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (526501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580 + ... + 1178.

It is an arithmetic number, because the mean of its divisors is an integer number (88200).

2⁵²⁶⁵²¹ is an apocalyptic number.

It is an amenable number.

526521 is a deficient number, since it is larger than the sum of its proper divisors (179079).

526521 is a wasteful number, since it uses less digits than its factorization.

526521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895.

The product of its digits is 600, while the sum is 21.

The square root of 526521 is about 725.6176679216. The cubic root of 526521 is about 80.7492627422.

The spelling of 526521 in words is "five hundred twenty-six thousand, five hundred twenty-one".