252272287 has 2 divisors, whose sum is σ = 252272288. Its totient is φ = 252272286.

The previous prime is 252272269. The next prime is 252272309. The reversal of 252272287 is 782272252.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252272287 is a prime.

It is a super-4 number, since 4×252272287⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252272687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126136143 + 126136144.

It is an arithmetic number, because the mean of its divisors is an integer number (126136144).

Almost surely, 2^252272287 is an apocalyptic number.

252272287 is a deficient number, since it is larger than the sum of its proper divisors (1).

252272287 is an equidigital number, since it uses as much as digits as its factorization.

252272287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62720, while the sum is 37.

The square root of 252272287 is about 15883.0817853463. The cubic root of 252272287 is about 631.8633729320.

The spelling of 252272287 in words is "two hundred fifty-two million, two hundred seventy-two thousand, two hundred eighty-seven".