11567265 has 16 divisors (see below), whose sum is σ = 18549888. Its totient is φ = 6155136.

The previous prime is 11567263. The next prime is 11567267. The reversal of 11567265 is 56276511.

Added to its reverse (56276511) it gives a triangular number (67843776 = T₁₁₆₄₈).

It is an interprime number because it is at equal distance from previous prime (11567263) and next prime (11567267).

It is not a de Polignac number, because 11567265 - 2¹ = 11567263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11567261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11877 + ... + 12813.

It is an arithmetic number, because the mean of its divisors is an integer number (1159368).

Almost surely, 2^11567265 is an apocalyptic number.

11567265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11567265 is a deficient number, since it is larger than the sum of its proper divisors (6982623).

11567265 is an equidigital number, since it uses as much as digits as its factorization.

11567265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768.

The product of its digits is 12600, while the sum is 33.

The square root of 11567265 is about 3401.0682145467. The cubic root of 11567265 is about 226.1571009385.

Adding to 11567265 its reverse (56276511), we get a triangular number (67843776 = T₁₁₆₄₈).

The spelling of 11567265 in words is "eleven million, five hundred sixty-seven thousand, two hundred sixty-five".