501252289 has 2 divisors, whose sum is σ = 501252290. Its totient is φ = 501252288.

The previous prime is 501252277. The next prime is 501252341. The reversal of 501252289 is 982252105.

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., 430977600 + 70274689 = 20760^2 + 8383^2 .

It is a cyclic number.

It is not a de Polignac number, because 501252289 - 2¹¹ = 501250241 is a prime.

It is not a weakly prime, because it can be changed into another prime (501252239) 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, 250626144 + 250626145.

It is an arithmetic number, because the mean of its divisors is an integer number (250626145).

Almost surely, 2^501252289 is an apocalyptic number.

It is an amenable number.

501252289 is a deficient number, since it is larger than the sum of its proper divisors (1).

501252289 is an equidigital number, since it uses as much as digits as its factorization.

501252289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 501252289 is about 22388.6642969160. The cubic root of 501252289 is about 794.3626018431.

The spelling of 501252289 in words is "five hundred one million, two hundred fifty-two thousand, two hundred eighty-nine".