252443215229 has 2 divisors, whose sum is σ = 252443215230. Its totient is φ = 252443215228.

The previous prime is 252443215207. The next prime is 252443215259. The reversal of 252443215229 is 922512344252.

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., 220498802329 + 31944412900 = 469573^2 + 178730^2 .

It is a cyclic number.

It is not a de Polignac number, because 252443215229 - 2⁸ = 252443214973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252443215259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126221607614 + 126221607615.

It is an arithmetic number, because the mean of its divisors is an integer number (126221607615).

Almost surely, 2^252443215229 is an apocalyptic number.

It is an amenable number.

252443215229 is a deficient number, since it is larger than the sum of its proper divisors (1).

252443215229 is an equidigital number, since it uses as much as digits as its factorization.

252443215229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 41.

The spelling of 252443215229 in words is "two hundred fifty-two billion, four hundred forty-three million, two hundred fifteen thousand, two hundred twenty-nine".