252303523237 has 2 divisors, whose sum is σ = 252303523238. Its totient is φ = 252303523236.

The previous prime is 252303523193. The next prime is 252303523247. The reversal of 252303523237 is 732325303252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180386228961 + 71917294276 = 424719^2 + 268174^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252303523237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252303523196 and 252303523205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252303523247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126151761618 + 126151761619.

It is an arithmetic number, because the mean of its divisors is an integer number (126151761619).

Almost surely, 2^252303523237 is an apocalyptic number.

It is an amenable number.

252303523237 is a deficient number, since it is larger than the sum of its proper divisors (1).

252303523237 is an equidigital number, since it uses as much as digits as its factorization.

252303523237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 37.

Adding to 252303523237 its reverse (732325303252), we get a palindrome (984628826489).

The spelling of 252303523237 in words is "two hundred fifty-two billion, three hundred three million, five hundred twenty-three thousand, two hundred thirty-seven".