501939233 has 2 divisors, whose sum is σ = 501939234. Its totient is φ = 501939232.

The previous prime is 501939209. The next prime is 501939239. The reversal of 501939233 is 332939105.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 382867489 + 119071744 = 19567^2 + 10912^2 .

It is a cyclic number.

It is not a de Polignac number, because 501939233 - 2¹⁴ = 501922849 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 501939193 and 501939202.

It is not a weakly prime, because it can be changed into another prime (501939239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250969616 + 250969617.

It is an arithmetic number, because the mean of its divisors is an integer number (250969617).

Almost surely, 2^501939233 is an apocalyptic number.

It is an amenable number.

501939233 is a deficient number, since it is larger than the sum of its proper divisors (1).

501939233 is an equidigital number, since it uses as much as digits as its factorization.

501939233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 501939233 is about 22404.0003793965. Note that the first 3 decimals coincide. The cubic root of 501939233 is about 794.7253157544.

The spelling of 501939233 in words is "five hundred one million, nine hundred thirty-nine thousand, two hundred thirty-three".