7272555 has 16 divisors (see below), whose sum is σ = 11680800. Its totient is φ = 3863808.

The previous prime is 7272527. The next prime is 7272557. The reversal of 7272555 is 5552727.

It is not a de Polignac number, because 7272555 - 2⁶ = 7272491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7272557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3921 + ... + 5469.

It is an arithmetic number, because the mean of its divisors is an integer number (730050).

Almost surely, 2^7272555 is an apocalyptic number.

7272555 is a deficient number, since it is larger than the sum of its proper divisors (4408245).

7272555 is a wasteful number, since it uses less digits than its factorization.

7272555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870.

The product of its digits is 24500, while the sum is 33.

The square root of 7272555 is about 2696.7675094453. The cubic root of 7272555 is about 193.7443314332.

It can be divided in two parts, 72 and 72555, that added together give a palindrome (72627).

The spelling of 7272555 in words is "seven million, two hundred seventy-two thousand, five hundred fifty-five".