252806273 has 2 divisors, whose sum is σ = 252806274. Its totient is φ = 252806272.

The previous prime is 252806251. The next prime is 252806293. The reversal of 252806273 is 372608252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242642929 + 10163344 = 15577^2 + 3188^2 .

It is a cyclic number.

It is not a de Polignac number, because 252806273 - 2²⁰ = 251757697 is a prime.

It is a super-2 number, since 2×252806273² = 127822023336301058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (252806233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126403136 + 126403137.

It is an arithmetic number, because the mean of its divisors is an integer number (126403137).

Almost surely, 2^252806273 is an apocalyptic number.

It is an amenable number.

252806273 is a deficient number, since it is larger than the sum of its proper divisors (1).

252806273 is an equidigital number, since it uses as much as digits as its factorization.

252806273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 252806273 is about 15899.8827983102. The cubic root of 252806273 is about 632.3088815205.

The spelling of 252806273 in words is "two hundred fifty-two million, eight hundred six thousand, two hundred seventy-three".