526501 has 2 divisors, whose sum is σ = 526502. Its totient is φ = 526500.

The previous prime is 526499. The next prime is 526511. The reversal of 526501 is 105625.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324900 + 201601 = 570^2 + 449^2 .

It is a cyclic number.

It is not a de Polignac number, because 526501 - 2¹ = 526499 is a prime.

Together with 526499, it forms a pair of twin primes.

526501 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (526511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263250 + 263251.

It is an arithmetic number, because the mean of its divisors is an integer number (263251).

2⁵²⁶⁵⁰¹ is an apocalyptic number.

526501 is the 325-th centered decagonal number.

It is an amenable number.

526501 is a deficient number, since it is larger than the sum of its proper divisors (1).

526501 is an equidigital number, since it uses as much as digits as its factorization.

526501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 526501 is about 725.6038864284. The cubic root of 526501 is about 80.7482403039.

The spelling of 526501 in words is "five hundred twenty-six thousand, five hundred one".