252578633 has 2 divisors, whose sum is σ = 252578634. Its totient is φ = 252578632.

The previous prime is 252578621. The next prime is 252578653. The reversal of 252578633 is 336875252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175085824 + 77492809 = 13232^2 + 8803^2 .

It is a cyclic number.

It is not a de Polignac number, because 252578633 - 2⁶ = 252578569 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (252578653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126289316 + 126289317.

It is an arithmetic number, because the mean of its divisors is an integer number (126289317).

Almost surely, 2^252578633 is an apocalyptic number.

It is an amenable number.

252578633 is a deficient number, since it is larger than the sum of its proper divisors (1).

252578633 is an equidigital number, since it uses as much as digits as its factorization.

252578633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 41.

The square root of 252578633 is about 15892.7226427696. The cubic root of 252578633 is about 632.1190365231.

The spelling of 252578633 in words is "two hundred fifty-two million, five hundred seventy-eight thousand, six hundred thirty-three".