72255266 has 8 divisors (see below), whose sum is σ = 108933660. Its totient is φ = 35944048.

The previous prime is 72255263. The next prime is 72255311. The reversal of 72255266 is 66255227.

It can be written as a sum of positive squares in 2 ways, for example, as 70980625 + 1274641 = 8425^2 + 1129^2 .

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

It is not an unprimeable number, because it can be changed into a prime (72255263) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 91301 + ... + 92088.

Almost surely, 2^72255266 is an apocalyptic number.

72255266 is a deficient number, since it is larger than the sum of its proper divisors (36678394).

72255266 is a wasteful number, since it uses less digits than its factorization.

72255266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183588.

The product of its digits is 50400, while the sum is 35.

The square root of 72255266 is about 8500.3097590617. The cubic root of 72255266 is about 416.5078279541.

The spelling of 72255266 in words is "seventy-two million, two hundred fifty-five thousand, two hundred sixty-six".