65224569 has 4 divisors (see below), whose sum is σ = 86966096. Its totient is φ = 43483044.

The previous prime is 65224553. The next prime is 65224571. The reversal of 65224569 is 96542256.

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 not a de Polignac number, because 65224569 - 2⁴ = 65224553 is a prime.

It is a super-2 number, since 2×65224569² = 8508488802471522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65224069) 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, 10870759 + ... + 10870764.

It is an arithmetic number, because the mean of its divisors is an integer number (21741524).

Almost surely, 2^65224569 is an apocalyptic number.

It is an amenable number.

65224569 is a deficient number, since it is larger than the sum of its proper divisors (21741527).

65224569 is a wasteful number, since it uses less digits than its factorization.

65224569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21741526.

The product of its digits is 129600, while the sum is 39.

The square root of 65224569 is about 8076.1729179111. The cubic root of 65224569 is about 402.5350848369.

The spelling of 65224569 in words is "sixty-five million, two hundred twenty-four thousand, five hundred sixty-nine".