65225616 has 40 divisors (see below), whose sum is σ = 171685440. Its totient is φ = 21330816.

The previous prime is 65225599. The next prime is 65225623. The reversal of 65225616 is 61652256.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10276 + ... + 15363.

It is an arithmetic number, because the mean of its divisors is an integer number (4292136).

Almost surely, 2^65225616 is an apocalyptic number.

It is an amenable number.

65225616 is an abundant number, since it is smaller than the sum of its proper divisors (106459824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65225616 is a wasteful number, since it uses less digits than its factorization.

65225616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25703 (or 25697 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 65225616 is about 8076.2377379570. The cubic root of 65225616 is about 402.5372386878.

The spelling of 65225616 in words is "sixty-five million, two hundred twenty-five thousand, six hundred sixteen".