64652500 has 60 divisors (see below), whose sum is σ = 154300608. Its totient is φ = 23500000.

The previous prime is 64652477. The next prime is 64652557. The reversal of 64652500 is 525646.

64652500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26325 + ... + 28675.

Almost surely, 2^64652500 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 64652500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77150304).

64652500 is an abundant number, since it is smaller than the sum of its proper divisors (89648108).

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

64652500 is a wasteful number, since it uses less digits than its factorization.

64652500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386 (or 2369 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 64652500 is about 8040.6778321234. The cubic root of 64652500 is about 401.3547812391.

The spelling of 64652500 in words is "sixty-four million, six hundred fifty-two thousand, five hundred".