64055564 has 6 divisors (see below), whose sum is σ = 112097244. Its totient is φ = 32027780.

The previous prime is 64055543. The next prime is 64055569. The reversal of 64055564 is 46555046.

It is not an unprimeable number, because it can be changed into a prime (64055569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8006942 + ... + 8006949.

It is an arithmetic number, because the mean of its divisors is an integer number (18682874).

Almost surely, 2^64055564 is an apocalyptic number.

It is an amenable number.

64055564 is a deficient number, since it is larger than the sum of its proper divisors (48041680).

64055564 is a wasteful number, since it uses less digits than its factorization.

64055564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16013895 (or 16013893 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 64055564 is about 8003.4719965775. The cubic root of 64055564 is about 400.1157248495.

The spelling of 64055564 in words is "sixty-four million, fifty-five thousand, five hundred sixty-four".