501222529 has 2 divisors, whose sum is σ = 501222530. Its totient is φ = 501222528.

The previous prime is 501222503. The next prime is 501222541. The reversal of 501222529 is 925222105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 472062529 + 29160000 = 21727^2 + 5400^2 .

It is a cyclic number.

It is not a de Polignac number, because 501222529 - 2²⁷ = 367004801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 501222497 and 501222506.

It is not a weakly prime, because it can be changed into another prime (501222559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250611264 + 250611265.

It is an arithmetic number, because the mean of its divisors is an integer number (250611265).

Almost surely, 2^501222529 is an apocalyptic number.

It is an amenable number.

501222529 is a deficient number, since it is larger than the sum of its proper divisors (1).

501222529 is an equidigital number, since it uses as much as digits as its factorization.

501222529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 501222529 is about 22387.9996649991. Note that the first 3 decimals coincide. The cubic root of 501222529 is about 794.3468807519.

The spelling of 501222529 in words is "five hundred one million, two hundred twenty-two thousand, five hundred twenty-nine".