72566275 has 12 divisors (see below), whose sum is σ = 91681632. Its totient is φ = 56956640.

The previous prime is 72566237. The next prime is 72566279. The reversal of 72566275 is 57266527.

It is not a de Polignac number, because 72566275 - 2⁷ = 72566147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72566279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26059 + ... + 28708.

It is an arithmetic number, because the mean of its divisors is an integer number (7640136).

Almost surely, 2^72566275 is an apocalyptic number.

72566275 is a deficient number, since it is larger than the sum of its proper divisors (19115357).

72566275 is a wasteful number, since it uses less digits than its factorization.

72566275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54830 (or 54825 counting only the distinct ones).

The product of its digits is 176400, while the sum is 40.

The square root of 72566275 is about 8518.5840959634. The cubic root of 72566275 is about 417.1045654038.

It can be divided in two parts, 7256 and 6275, that added together give a palindrome (13531).

The spelling of 72566275 in words is "seventy-two million, five hundred sixty-six thousand, two hundred seventy-five".