64554964 has 12 divisors (see below), whose sum is σ = 113116500. Its totient is φ = 32235968.

The previous prime is 64554961. The next prime is 64554977. The reversal of 64554964 is 46945546.

It can be written as a sum of positive squares in 2 ways, for example, as 31584400 + 32970564 = 5620^2 + 5742^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64554964.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64554961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6739 + ... + 13210.

It is an arithmetic number, because the mean of its divisors is an integer number (9426375).

Almost surely, 2^64554964 is an apocalyptic number.

It is an amenable number.

64554964 is a deficient number, since it is larger than the sum of its proper divisors (48561536).

64554964 is a wasteful number, since it uses less digits than its factorization.

64554964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20762 (or 20760 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The square root of 64554964 is about 8034.6103825886. The cubic root of 64554964 is about 401.1528491550.

The spelling of 64554964 in words is "sixty-four million, five hundred fifty-four thousand, nine hundred sixty-four".