64975056 has 80 divisors (see below), whose sum is σ = 173988864. Its totient is φ = 20881792.

The previous prime is 64975049. The next prime is 64975061. The reversal of 64975056 is 65057946.

It is a junction number, because it is equal to n+sod(n) for n = 64974999 and 64975017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187075 + ... + 187421.

Almost surely, 2^64975056 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 64975056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86994432).

64975056 is an abundant number, since it is smaller than the sum of its proper divisors (109013808).

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

64975056 is a wasteful number, since it uses less digits than its factorization.

64975056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 482 counting only the distinct ones).

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

The square root of 64975056 is about 8060.7106386472. The cubic root of 64975056 is about 402.0211369792.

The spelling of 64975056 in words is "sixty-four million, nine hundred seventy-five thousand, fifty-six".