73032565 has 4 divisors (see below), whose sum is σ = 87639084. Its totient is φ = 58426048.

The previous prime is 73032563. The next prime is 73032581. The reversal of 73032565 is 56523037.

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 31158724 + 41873841 = 5582^2 + 6471^2 .

It is a cyclic number.

It is not a de Polignac number, because 73032565 - 2¹ = 73032563 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73032563) 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, 7303252 + ... + 7303261.

It is an arithmetic number, because the mean of its divisors is an integer number (21909771).

Almost surely, 2^73032565 is an apocalyptic number.

It is an amenable number.

73032565 is a deficient number, since it is larger than the sum of its proper divisors (14606519).

73032565 is a wasteful number, since it uses less digits than its factorization.

73032565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14606518.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 73032565 is about 8545.9092553104. The cubic root of 73032565 is about 417.9960566007.

The spelling of 73032565 in words is "seventy-three million, thirty-two thousand, five hundred sixty-five".