265506167 has 2 divisors, whose sum is σ = 265506168. Its totient is φ = 265506166.

The previous prime is 265506161. The next prime is 265506173. The reversal of 265506167 is 761605562.

It is a balanced prime because it is at equal distance from previous prime (265506161) and next prime (265506173).

It is a cyclic number.

It is not a de Polignac number, because 265506167 - 2¹² = 265502071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 265506167.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265506161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132753083 + 132753084.

It is an arithmetic number, because the mean of its divisors is an integer number (132753084).

Almost surely, 2^265506167 is an apocalyptic number.

265506167 is a deficient number, since it is larger than the sum of its proper divisors (1).

265506167 is an equidigital number, since it uses as much as digits as its factorization.

265506167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 265506167 is about 16294.3599751570. The cubic root of 265506167 is about 642.7245235683.

The spelling of 265506167 in words is "two hundred sixty-five million, five hundred six thousand, one hundred sixty-seven".