215064253 has 2 divisors, whose sum is σ = 215064254. Its totient is φ = 215064252.

The previous prime is 215064251. The next prime is 215064257. The reversal of 215064253 is 352460512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204547204 + 10517049 = 14302^2 + 3243^2 .

It is a cyclic number.

It is not a de Polignac number, because 215064253 - 2¹ = 215064251 is a prime.

Together with 215064251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215064251) 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, 107532126 + 107532127.

It is an arithmetic number, because the mean of its divisors is an integer number (107532127).

Almost surely, 2^215064253 is an apocalyptic number.

It is an amenable number.

215064253 is a deficient number, since it is larger than the sum of its proper divisors (1).

215064253 is an equidigital number, since it uses as much as digits as its factorization.

215064253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 215064253 is about 14665.0691440579. The cubic root of 215064253 is about 599.1323133974.

The spelling of 215064253 in words is "two hundred fifteen million, sixty-four thousand, two hundred fifty-three".