64552960 has 68 divisors (see below), whose sum is σ = 155712348. Its totient is φ = 25690112.

The previous prime is 64552931. The next prime is 64552963. The reversal of 64552960 is 6925546.

It can be written as a sum of positive squares in 2 ways, for example, as 47775744 + 16777216 = 6912^2 + 4096^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64552963) by changing a digit.

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, 327582 + ... + 327778.

Almost surely, 2^64552960 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 64552960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77856174).

64552960 is an abundant number, since it is smaller than the sum of its proper divisors (91159388).

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

64552960 is an frugal number, since it uses more digits than its factorization.

64552960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 64552960 is about 8034.4856711553. The cubic root of 64552960 is about 401.1486980741.

The spelling of 64552960 in words is "sixty-four million, five hundred fifty-two thousand, nine hundred sixty".