64522120 has 64 divisors (see below), whose sum is σ = 157489920. Its totient is φ = 23649024.

The previous prime is 64522111. The next prime is 64522141. The reversal of 64522120 is 2122546.

It is a junction number, because it is equal to n+sod(n) for n = 64522091 and 64522100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86469 + ... + 87211.

It is an arithmetic number, because the mean of its divisors is an integer number (2460780).

Almost surely, 2^64522120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64522120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78744960).

64522120 is an abundant number, since it is smaller than the sum of its proper divisors (92967800).

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

64522120 is a wasteful number, since it uses less digits than its factorization.

64522120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 64522120 is about 8032.5662151021. The cubic root of 64522120 is about 401.0848053339.

Adding to 64522120 its reverse (2122546), we get a palindrome (66644666).

The spelling of 64522120 in words is "sixty-four million, five hundred twenty-two thousand, one hundred twenty".