72564595 has 4 divisors (see below), whose sum is σ = 87077520. Its totient is φ = 58051672.

The previous prime is 72564589. The next prime is 72564599. The reversal of 72564595 is 59546527.

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 72564595 - 2³ = 72564587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72564599) 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, 7256455 + ... + 7256464.

It is an arithmetic number, because the mean of its divisors is an integer number (21769380).

Almost surely, 2^72564595 is an apocalyptic number.

72564595 is a deficient number, since it is larger than the sum of its proper divisors (14512925).

72564595 is a wasteful number, since it uses less digits than its factorization.

72564595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14512924.

The product of its digits is 378000, while the sum is 43.

The square root of 72564595 is about 8518.4854874561. The cubic root of 72564595 is about 417.1013465482.

The spelling of 72564595 in words is "seventy-two million, five hundred sixty-four thousand, five hundred ninety-five".