500450521 has 2 divisors, whose sum is σ = 500450522. Its totient is φ = 500450520.

The previous prime is 500450513. The next prime is 500450549. The reversal of 500450521 is 125054005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 455224896 + 45225625 = 21336^2 + 6725^2 .

It is a cyclic number.

It is not a de Polignac number, because 500450521 - 2³ = 500450513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 500450492 and 500450501.

It is not a weakly prime, because it can be changed into another prime (500450581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250225260 + 250225261.

It is an arithmetic number, because the mean of its divisors is an integer number (250225261).

Almost surely, 2^500450521 is an apocalyptic number.

It is an amenable number.

500450521 is a deficient number, since it is larger than the sum of its proper divisors (1).

500450521 is an equidigital number, since it uses as much as digits as its factorization.

500450521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 500450521 is about 22370.7514625683. The cubic root of 500450521 is about 793.9388402578.

The spelling of 500450521 in words is "five hundred million, four hundred fifty thousand, five hundred twenty-one".