265116583 has 4 divisors (see below), whose sum is σ = 265460328. Its totient is φ = 264772840.

The previous prime is 265116569. The next prime is 265116587. The reversal of 265116583 is 385611562.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265116583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265116587) 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 in 3 ways as a sum of consecutive naturals, for example, 170713 + ... + 172258.

It is an arithmetic number, because the mean of its divisors is an integer number (66365082).

Almost surely, 2^265116583 is an apocalyptic number.

265116583 is a deficient number, since it is larger than the sum of its proper divisors (343745).

265116583 is an equidigital number, since it uses as much as digits as its factorization.

265116583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343744.

The product of its digits is 43200, while the sum is 37.

The square root of 265116583 is about 16282.4010207340. The cubic root of 265116583 is about 642.4100076332.

The spelling of 265116583 in words is "two hundred sixty-five million, one hundred sixteen thousand, five hundred eighty-three".