263755 has 16 divisors (see below), whose sum is σ = 349920. Its totient is φ = 189952.

The previous prime is 263737. The next prime is 263759. The reversal of 263755 is 557362.

263755 = 6² + 7² + ... + 92².

It is a cyclic number.

It is not a de Polignac number, because 263755 - 2⁵ = 263723 is a prime.

263755 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (263759) 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, 2412 + ... + 2518.

It is an arithmetic number, because the mean of its divisors is an integer number (21870).

2²⁶³⁷⁵⁵ is an apocalyptic number.

263755 is a deficient number, since it is larger than the sum of its proper divisors (86165).

263755 is a wasteful number, since it uses less digits than its factorization.

263755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158.

The product of its digits is 6300, while the sum is 28.

The square root of 263755 is about 513.5708325051. The cubic root of 263755 is about 64.1308358642.

The spelling of 263755 in words is "two hundred sixty-three thousand, seven hundred fifty-five".