262511 has 2 divisors, whose sum is σ = 262512. Its totient is φ = 262510.

The previous prime is 262501. The next prime is 262513. The reversal of 262511 is 115262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 262511 - 2¹⁸ = 367 is a prime.

Together with 262513, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 262511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (262513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131255 + 131256.

It is an arithmetic number, because the mean of its divisors is an integer number (131256).

2²⁶²⁵¹¹ is an apocalyptic number.

262511 is a deficient number, since it is larger than the sum of its proper divisors (1).

262511 is an equidigital number, since it uses as much as digits as its factorization.

262511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120, while the sum is 17.

The square root of 262511 is about 512.3582730863. The cubic root of 262511 is about 64.0298526096.

Adding to 262511 its reverse (115262), we get a palindrome (377773).

The spelling of 262511 in words is "two hundred sixty-two thousand, five hundred eleven".