72655 has 8 divisors (see below), whose sum is σ = 95184. Its totient is φ = 52800.

The previous prime is 72649. The next prime is 72661. The reversal of 72655 is 55627.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72649) and next prime (72661).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72655 - 2³ = 72647 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a nialpdrome in base 5.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606 + ... + 715.

It is an arithmetic number, because the mean of its divisors is an integer number (11898).

2⁷²⁶⁵⁵ is an apocalyptic number.

72655 is a deficient number, since it is larger than the sum of its proper divisors (22529).

72655 is a wasteful number, since it uses less digits than its factorization.

72655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337.

The product of its digits is 2100, while the sum is 25.

The square root of 72655 is about 269.5459144561. The cubic root of 72655 is about 41.7274490667.

It can be divided in two parts, 72 and 655, that added together give a palindrome (727).

The spelling of 72655 in words is "seventy-two thousand, six hundred fifty-five".