288755 has 4 divisors (see below), whose sum is σ = 346512. Its totient is φ = 231000.

The previous prime is 288751. The next prime is 288767. The reversal of 288755 is 557882.

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

It is not a de Polignac number, because 288755 - 2² = 288751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (288751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28871 + ... + 28880.

It is an arithmetic number, because the mean of its divisors is an integer number (86628).

2²⁸⁸⁷⁵⁵ is an apocalyptic number.

288755 is a deficient number, since it is larger than the sum of its proper divisors (57757).

288755 is an equidigital number, since it uses as much as digits as its factorization.

288755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57756.

The product of its digits is 22400, while the sum is 35.

The square root of 288755 is about 537.3592839060. The cubic root of 288755 is about 66.0962019175.

The spelling of 288755 in words is "two hundred eighty-eight thousand, seven hundred fifty-five".