64803520 has 56 divisors (see below), whose sum is σ = 155045664. Its totient is φ = 25798656.

The previous prime is 64803517. The next prime is 64803559. The reversal of 64803520 is 2530846.

64803520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 99837 + ... + 100483.

Almost surely, 2^64803520 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 64803520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77522832).

64803520 is an abundant number, since it is smaller than the sum of its proper divisors (90242144).

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

64803520 is a wasteful number, since it uses less digits than its factorization.

64803520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 64803520 is about 8050.0633537880. The cubic root of 64803520 is about 401.6670427694.

It can be divided in two parts, 6480 and 3520, that added together give a 4-th power (10000 = 10⁴).

The spelling of 64803520 in words is "sixty-four million, eight hundred three thousand, five hundred twenty".