265957 has 2 divisors, whose sum is σ = 265958. Its totient is φ = 265956.

The previous prime is 265921. The next prime is 265961. The reversal of 265957 is 759562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231361 + 34596 = 481^2 + 186^2 .

It is a cyclic number.

It is not a de Polignac number, because 265957 - 2¹¹ = 263909 is a prime.

265957 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132978 + 132979.

It is an arithmetic number, because the mean of its divisors is an integer number (132979).

2²⁶⁵⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

265957 is a deficient number, since it is larger than the sum of its proper divisors (1).

265957 is an equidigital number, since it uses as much as digits as its factorization.

265957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 34.

The square root of 265957 is about 515.7101899323. The cubic root of 265957 is about 64.3088102786.

The spelling of 265957 in words is "two hundred sixty-five thousand, nine hundred fifty-seven".