252663949 has 2 divisors, whose sum is σ = 252663950. Its totient is φ = 252663948.

The previous prime is 252663907. The next prime is 252663967. The reversal of 252663949 is 949366252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188375625 + 64288324 = 13725^2 + 8018^2 .

It is a cyclic number.

It is not a de Polignac number, because 252663949 - 2⁷ = 252663821 is a prime.

It is a super-2 number, since 2×252663949² = 127678142248549202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252663899 and 252663908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252663049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126331974 + 126331975.

It is an arithmetic number, because the mean of its divisors is an integer number (126331975).

Almost surely, 2^252663949 is an apocalyptic number.

It is an amenable number.

252663949 is a deficient number, since it is larger than the sum of its proper divisors (1).

252663949 is an equidigital number, since it uses as much as digits as its factorization.

252663949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 46.

The square root of 252663949 is about 15895.4065377391. The cubic root of 252663949 is about 632.1902008915.

The spelling of 252663949 in words is "two hundred fifty-two million, six hundred sixty-three thousand, nine hundred forty-nine".