72565373 has 4 divisors (see below), whose sum is σ = 72622368. Its totient is φ = 72508380.

The previous prime is 72565343. The next prime is 72565379. The reversal of 72565373 is 37356527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72565373 - 2⁶ = 72565309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72565379) 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 3 ways as a sum of consecutive naturals, for example, 26543 + ... + 29148.

It is an arithmetic number, because the mean of its divisors is an integer number (18155592).

Almost surely, 2^72565373 is an apocalyptic number.

It is an amenable number.

72565373 is a deficient number, since it is larger than the sum of its proper divisors (56995).

72565373 is a wasteful number, since it uses less digits than its factorization.

72565373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56994.

The product of its digits is 132300, while the sum is 38.

The square root of 72565373 is about 8518.5311527282. The cubic root of 72565373 is about 417.1028371911.

The spelling of 72565373 in words is "seventy-two million, five hundred sixty-five thousand, three hundred seventy-three".