72855275 has 6 divisors (see below), whose sum is σ = 90340572. Its totient is φ = 58284200.

The previous prime is 72855271. The next prime is 72855359. The reversal of 72855275 is 57255827.

It is not a de Polignac number, because 72855275 - 2² = 72855271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72855271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1457081 + ... + 1457130.

It is an arithmetic number, because the mean of its divisors is an integer number (15056762).

Almost surely, 2^72855275 is an apocalyptic number.

72855275 is a deficient number, since it is larger than the sum of its proper divisors (17485297).

72855275 is a wasteful number, since it uses less digits than its factorization.

72855275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914221 (or 2914216 counting only the distinct ones).

The product of its digits is 196000, while the sum is 41.

The square root of 72855275 is about 8535.5301534234. The cubic root of 72855275 is about 417.6575474823.

The spelling of 72855275 in words is "seventy-two million, eight hundred fifty-five thousand, two hundred seventy-five".