523541 has 2 divisors, whose sum is σ = 523542. Its totient is φ = 523540.

The previous prime is 523519. The next prime is 523543. The reversal of 523541 is 145325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461041 + 62500 = 679^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 523541 - 2¹⁰ = 522517 is a prime.

Together with 523543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523543) 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, 261770 + 261771.

It is an arithmetic number, because the mean of its divisors is an integer number (261771).

2⁵²³⁵⁴¹ is an apocalyptic number.

It is an amenable number.

523541 is a deficient number, since it is larger than the sum of its proper divisors (1).

523541 is an equidigital number, since it uses as much as digits as its factorization.

523541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600, while the sum is 20.

The square root of 523541 is about 723.5613311945. The cubic root of 523541 is about 80.5966330509.

Adding to 523541 its reverse (145325), we get a palindrome (668866).

The spelling of 523541 in words is "five hundred twenty-three thousand, five hundred forty-one".