64528 has 20 divisors (see below), whose sum is σ = 129580. Its totient is φ = 31104.

The previous prime is 64513. The next prime is 64553. The reversal of 64528 is 82546.

It can be written as a sum of positive squares in 2 ways, for example, as 51984 + 12544 = 228^2 + 112^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538 + ... + 646.

It is an arithmetic number, because the mean of its divisors is an integer number (6479).

2⁶⁴⁵²⁸ is an apocalyptic number.

It is an amenable number.

64528 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64790).

64528 is a wasteful number, since it uses less digits than its factorization.

64528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 148 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 64528 is about 254.0236209489. The cubic root of 64528 is about 40.1096988789.

The spelling of 64528 in words is "sixty-four thousand, five hundred twenty-eight".