523801 has 2 divisors, whose sum is σ = 523802. Its totient is φ = 523800.

The previous prime is 523793. The next prime is 523829. The reversal of 523801 is 108325.

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., 491401 + 32400 = 701^2 + 180^2 .

It is a cyclic number.

It is not a de Polignac number, because 523801 - 2³ = 523793 is a prime.

It is not a weakly prime, because it can be changed into another prime (524801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261900 + 261901.

It is an arithmetic number, because the mean of its divisors is an integer number (261901).

2⁵²³⁸⁰¹ is an apocalyptic number.

It is an amenable number.

523801 is a deficient number, since it is larger than the sum of its proper divisors (1).

523801 is an equidigital number, since it uses as much as digits as its factorization.

523801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 523801 is about 723.7409757641. The cubic root of 523801 is about 80.6099727617.

The spelling of 523801 in words is "five hundred twenty-three thousand, eight hundred one".