72565227 has 60 divisors (see below), whose sum is σ = 129111840. Its totient is φ = 40479264.

The previous prime is 72565219. The next prime is 72565247. The reversal of 72565227 is 72256527.

72565227 is a `hidden beast` number, since 72 + 565 + 2 + 27 = 666.

It is not a de Polignac number, because 72565227 - 2³ = 72565219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72565191 and 72565200.

It is not an unprimeable number, because it can be changed into a prime (72565217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 186349 + ... + 186737.

It is an arithmetic number, because the mean of its divisors is an integer number (2151864).

Almost surely, 2^72565227 is an apocalyptic number.

72565227 is a deficient number, since it is larger than the sum of its proper divisors (56546613).

72565227 is a wasteful number, since it uses less digits than its factorization.

72565227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 446 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 72565227 is about 8518.5225831713. The cubic root of 72565227 is about 417.1025574569.

The spelling of 72565227 in words is "seventy-two million, five hundred sixty-five thousand, two hundred twenty-seven".