215253610267 has 2 divisors, whose sum is σ = 215253610268. Its totient is φ = 215253610266.

The previous prime is 215253610193. The next prime is 215253610321. The reversal of 215253610267 is 762016352512.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215253610267 is a prime.

It is a super-2 number, since 2×215253610267² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (215253610067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107626805133 + 107626805134.

It is an arithmetic number, because the mean of its divisors is an integer number (107626805134).

Almost surely, 2^215253610267 is an apocalyptic number.

215253610267 is a deficient number, since it is larger than the sum of its proper divisors (1).

215253610267 is an equidigital number, since it uses as much as digits as its factorization.

215253610267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 40.

Adding to 215253610267 its reverse (762016352512), we get a palindrome (977269962779).

The spelling of 215253610267 in words is "two hundred fifteen billion, two hundred fifty-three million, six hundred ten thousand, two hundred sixty-seven".