511263 has 6 divisors (see below), whose sum is σ = 738504. Its totient is φ = 340836.

The previous prime is 511261. The next prime is 511279. The reversal of 511263 is 362115.

It is not a de Polignac number, because 511263 - 2¹ = 511261 is a prime.

It is a super-2 number, since 2×511263² = 522779710338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28395 + ... + 28412.

It is an arithmetic number, because the mean of its divisors is an integer number (123084).

2⁵¹¹²⁶³ is an apocalyptic number.

511263 is a deficient number, since it is larger than the sum of its proper divisors (227241).

511263 is a wasteful number, since it uses less digits than its factorization.

511263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56813 (or 56810 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 511263 is about 715.0265729328. The cubic root of 511263 is about 79.9615961506.

Adding to 511263 its reverse (362115), we get a palindrome (873378).

The spelling of 511263 in words is "five hundred eleven thousand, two hundred sixty-three".