64550976 has 56 divisors (see below), whose sum is σ = 195193920. Its totient is φ = 18442752.

The previous prime is 64550963. The next prime is 64550987. The reversal of 64550976 is 67905546.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22671 + ... + 25358.

Almost surely, 2^64550976 is an apocalyptic number.

It is an amenable number.

64550976 is an abundant number, since it is smaller than the sum of its proper divisors (130642944).

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

64550976 is a wasteful number, since it uses less digits than its factorization.

64550976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48051 (or 48041 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 64550976 is about 8034.3622024402. The cubic root of 64550976 is about 401.1445883365.

The spelling of 64550976 in words is "sixty-four million, five hundred fifty thousand, nine hundred seventy-six".