72273255 has 16 divisors (see below), whose sum is σ = 115844064. Its totient is φ = 38476800.

The previous prime is 72273233. The next prime is 72273259. The reversal of 72273255 is 55237227.

It is not a de Polignac number, because 72273255 - 2⁷ = 72273127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72273259) 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, 5007 + ... + 13023.

It is an arithmetic number, because the mean of its divisors is an integer number (7240254).

Almost surely, 2^72273255 is an apocalyptic number.

72273255 is a deficient number, since it is larger than the sum of its proper divisors (43570809).

72273255 is a wasteful number, since it uses less digits than its factorization.

72273255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8626.

The product of its digits is 29400, while the sum is 33.

The square root of 72273255 is about 8501.3678311199. The cubic root of 72273255 is about 416.5423903144.

The spelling of 72273255 in words is "seventy-two million, two hundred seventy-three thousand, two hundred fifty-five".