72566527 has 4 divisors (see below), whose sum is σ = 79163496. Its totient is φ = 65969560.

The previous prime is 72566467. The next prime is 72566537.

72566527 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72566527 - 2⁷ = 72566399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72566527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72566537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3298468 + ... + 3298489.

It is an arithmetic number, because the mean of its divisors is an integer number (19790874).

Almost surely, 2^72566527 is an apocalyptic number.

72566527 is a deficient number, since it is larger than the sum of its proper divisors (6596969).

72566527 is a wasteful number, since it uses less digits than its factorization.

72566527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6596968.

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

The square root of 72566527 is about 8518.5988871410. The cubic root of 72566527 is about 417.1050482279.

The spelling of 72566527 in words is "seventy-two million, five hundred sixty-six thousand, five hundred twenty-seven".