64555408 has 20 divisors (see below), whose sum is σ = 126585648. Its totient is φ = 31888160.

The previous prime is 64555397. The next prime is 64555429. The reversal of 64555408 is 80455546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22978 + ... + 25633.

Almost surely, 2^64555408 is an apocalyptic number.

It is an amenable number.

64555408 is a deficient number, since it is larger than the sum of its proper divisors (62030240).

64555408 is a wasteful number, since it uses less digits than its factorization.

64555408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48702 (or 48696 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

The square root of 64555408 is about 8034.6380130034. The cubic root of 64555408 is about 401.1537688439.

The spelling of 64555408 in words is "sixty-four million, five hundred fifty-five thousand, four hundred eight".