501488521 has 2 divisors, whose sum is σ = 501488522. Its totient is φ = 501488520.

The previous prime is 501488467. The next prime is 501488531. The reversal of 501488521 is 125884105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286455625 + 215032896 = 16925^2 + 14664^2 .

It is a cyclic number.

It is not a de Polignac number, because 501488521 - 2¹⁵ = 501455753 is a prime.

It is not a weakly prime, because it can be changed into another prime (501488531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250744260 + 250744261.

It is an arithmetic number, because the mean of its divisors is an integer number (250744261).

Almost surely, 2^501488521 is an apocalyptic number.

It is an amenable number.

501488521 is a deficient number, since it is larger than the sum of its proper divisors (1).

501488521 is an equidigital number, since it uses as much as digits as its factorization.

501488521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 501488521 is about 22393.9393810022. The cubic root of 501488521 is about 794.4873722755.

The spelling of 501488521 in words is "five hundred one million, four hundred eighty-eight thousand, five hundred twenty-one".