501043489 has 2 divisors, whose sum is σ = 501043490. Its totient is φ = 501043488.

The previous prime is 501043481. The next prime is 501043537. The reversal of 501043489 is 984340105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 441630225 + 59413264 = 21015^2 + 7708^2 .

It is a cyclic number.

It is not a de Polignac number, because 501043489 - 2³ = 501043481 is a prime.

It is not a weakly prime, because it can be changed into another prime (501043481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250521744 + 250521745.

It is an arithmetic number, because the mean of its divisors is an integer number (250521745).

Almost surely, 2^501043489 is an apocalyptic number.

It is an amenable number.

501043489 is a deficient number, since it is larger than the sum of its proper divisors (1).

501043489 is an equidigital number, since it uses as much as digits as its factorization.

501043489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 501043489 is about 22384.0007371337. Note that the first 3 decimals coincide. The cubic root of 501043489 is about 794.2522875027.

The spelling of 501043489 in words is "five hundred one million, forty-three thousand, four hundred eighty-nine".