501493 has 2 divisors, whose sum is σ = 501494. Its totient is φ = 501492.

The previous prime is 501463. The next prime is 501503. The reversal of 501493 is 394105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 339889 + 161604 = 583^2 + 402^2 .

It is a cyclic number.

It is not a de Polignac number, because 501493 - 2¹³ = 493301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501463) 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, 250746 + 250747.

It is an arithmetic number, because the mean of its divisors is an integer number (250747).

2⁵⁰¹⁴⁹³ is an apocalyptic number.

It is an amenable number.

501493 is a deficient number, since it is larger than the sum of its proper divisors (1).

501493 is an equidigital number, since it uses as much as digits as its factorization.

501493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 501493 is about 708.1617046975. The cubic root of 501493 is about 79.4489737566.

Adding to 501493 its reverse (394105), we get a palindrome (895598).

The spelling of 501493 in words is "five hundred one thousand, four hundred ninety-three".