64520082 has 48 divisors (see below), whose sum is σ = 156641472. Its totient is φ = 19020960.

The previous prime is 64520069. The next prime is 64520123. The reversal of 64520082 is 28002546.

64520082 is a `hidden beast` number, since 64 + 520 + 0 + 82 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2923 + ... + 11729.

It is an arithmetic number, because the mean of its divisors is an integer number (3263364).

Almost surely, 2^64520082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64520082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78320736).

64520082 is an abundant number, since it is smaller than the sum of its proper divisors (92121390).

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

64520082 is a wasteful number, since it uses less digits than its factorization.

64520082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8863 (or 8860 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 64520082 is about 8032.4393555134. The cubic root of 64520082 is about 401.0805823923.

The spelling of 64520082 in words is "sixty-four million, five hundred twenty thousand, eighty-two".