72755 has 4 divisors (see below), whose sum is σ = 87312. Its totient is φ = 58200.

The previous prime is 72739. The next prime is 72763. The reversal of 72755 is 55727.

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

It is not a de Polignac number, because 72755 - 2⁴ = 72739 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 72755.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7271 + ... + 7280.

It is an arithmetic number, because the mean of its divisors is an integer number (21828).

2⁷²⁷⁵⁵ is an apocalyptic number.

72755 is a deficient number, since it is larger than the sum of its proper divisors (14557).

72755 is a wasteful number, since it uses less digits than its factorization.

72755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14556.

The product of its digits is 2450, while the sum is 26.

The square root of 72755 is about 269.7313478259. The cubic root of 72755 is about 41.7465843955.

The spelling of 72755 in words is "seventy-two thousand, seven hundred fifty-five".