65523612 has 48 divisors (see below), whose sum is σ = 190616832. Its totient is φ = 17018880.

The previous prime is 65523611. The next prime is 65523643. The reversal of 65523612 is 21632556.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 65523612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65523611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34533 + ... + 36380.

It is an arithmetic number, because the mean of its divisors is an integer number (3971184).

Almost surely, 2^65523612 is an apocalyptic number.

It is an amenable number.

65523612 is an abundant number, since it is smaller than the sum of its proper divisors (125093220).

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

65523612 is a wasteful number, since it uses less digits than its factorization.

65523612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70938 (or 70936 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 65523612 is about 8094.6656509086. The cubic root of 65523612 is about 403.1493308793.

The spelling of 65523612 in words is "sixty-five million, five hundred twenty-three thousand, six hundred twelve".