64715056 has 80 divisors (see below), whose sum is σ = 155615040. Its totient is φ = 25436160.

The previous prime is 64715047. The next prime is 64715089. The reversal of 64715056 is 65051746.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 77650 + ... + 78478.

It is an arithmetic number, because the mean of its divisors is an integer number (1945188).

Almost surely, 2^64715056 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 64715056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77807520).

64715056 is an abundant number, since it is smaller than the sum of its proper divisors (90899984).

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

64715056 is a wasteful number, since it uses less digits than its factorization.

64715056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 64715056 is about 8044.5668621747. The cubic root of 64715056 is about 401.4841861673.

It can be divided in two parts, 647150 and 56, that multiplied together give a square (36240400 = 6020²).

The spelling of 64715056 in words is "sixty-four million, seven hundred fifteen thousand, fifty-six".