65564572 has 6 divisors (see below), whose sum is σ = 114738008. Its totient is φ = 32782284.

The previous prime is 65564561. The next prime is 65564581. The reversal of 65564572 is 27546556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8195568 + ... + 8195575.

Almost surely, 2^65564572 is an apocalyptic number.

It is an amenable number.

65564572 is a deficient number, since it is larger than the sum of its proper divisors (49173436).

65564572 is a wasteful number, since it uses less digits than its factorization.

65564572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16391147 (or 16391145 counting only the distinct ones).

The product of its digits is 252000, while the sum is 40.

The square root of 65564572 is about 8097.1953168983. The cubic root of 65564572 is about 403.2333187041.

The spelling of 65564572 in words is "sixty-five million, five hundred sixty-four thousand, five hundred seventy-two".