65222565 has 8 divisors (see below), whose sum is σ = 104356128. Its totient is φ = 34785360.

The previous prime is 65222561. The next prime is 65222567. The reversal of 65222565 is 56522256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65222565 - 2² = 65222561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65222561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2174071 + ... + 2174100.

It is an arithmetic number, because the mean of its divisors is an integer number (13044516).

Almost surely, 2^65222565 is an apocalyptic number.

It is an amenable number.

65222565 is a deficient number, since it is larger than the sum of its proper divisors (39133563).

65222565 is a wasteful number, since it uses less digits than its factorization.

65222565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4348179.

The product of its digits is 36000, while the sum is 33.

The square root of 65222565 is about 8076.0488482921. The cubic root of 65222565 is about 402.5309622157.

The spelling of 65222565 in words is "sixty-five million, two hundred twenty-two thousand, five hundred sixty-five".