501782441 has 2 divisors, whose sum is σ = 501782442. Its totient is φ = 501782440.

The previous prime is 501782423. The next prime is 501782537. The reversal of 501782441 is 144287105.

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., 474324841 + 27457600 = 21779^2 + 5240^2 .

It is a cyclic number.

It is not a de Polignac number, because 501782441 - 2¹⁰ = 501781417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 501782398 and 501782407.

It is not a weakly prime, because it can be changed into another prime (501782341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250891220 + 250891221.

It is an arithmetic number, because the mean of its divisors is an integer number (250891221).

Almost surely, 2^501782441 is an apocalyptic number.

It is an amenable number.

501782441 is a deficient number, since it is larger than the sum of its proper divisors (1).

501782441 is an equidigital number, since it uses as much as digits as its factorization.

501782441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 501782441 is about 22400.5009095779. The cubic root of 501782441 is about 794.6425570323.

The spelling of 501782441 in words is "five hundred one million, seven hundred eighty-two thousand, four hundred forty-one".