73272565 has 4 divisors (see below), whose sum is σ = 87927084. Its totient is φ = 58618048.

The previous prime is 73272547. The next prime is 73272581. The reversal of 73272565 is 56527237.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15421329 + 57851236 = 3927^2 + 7606^2 .

It is a cyclic number.

It is not a de Polignac number, because 73272565 - 2⁹ = 73272053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7327252 + ... + 7327261.

It is an arithmetic number, because the mean of its divisors is an integer number (21981771).

Almost surely, 2^73272565 is an apocalyptic number.

It is an amenable number.

73272565 is a deficient number, since it is larger than the sum of its proper divisors (14654519).

73272565 is a wasteful number, since it uses less digits than its factorization.

73272565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14654518.

The product of its digits is 88200, while the sum is 37.

The square root of 73272565 is about 8559.9395441790. The cubic root of 73272565 is about 418.4534295735.

It can be divided in two parts, 73272 and 565, that added together give a palindrome (73837).

The spelling of 73272565 in words is "seventy-three million, two hundred seventy-two thousand, five hundred sixty-five".