65216575 has 6 divisors (see below), whose sum is σ = 80868584. Its totient is φ = 52173240.

The previous prime is 65216561. The next prime is 65216581. The reversal of 65216575 is 57561256.

It is not a de Polignac number, because 65216575 - 2¹³ = 65208383 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 5 ways as a sum of consecutive naturals, for example, 1304307 + ... + 1304356.

Almost surely, 2^65216575 is an apocalyptic number.

65216575 is a deficient number, since it is larger than the sum of its proper divisors (15652009).

65216575 is a wasteful number, since it uses less digits than its factorization.

65216575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2608673 (or 2608668 counting only the distinct ones).

The product of its digits is 63000, while the sum is 37.

The square root of 65216575 is about 8075.6779901133. The cubic root of 65216575 is about 402.5186391070.

The spelling of 65216575 in words is "sixty-five million, two hundred sixteen thousand, five hundred seventy-five".