64528577 has 8 divisors (see below), whose sum is σ = 66708480. Its totient is φ = 62354880.

The previous prime is 64528561. The next prime is 64528591. The reversal of 64528577 is 77582546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64528577 - 2⁴ = 64528561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64528517) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 30248 + ... + 32310.

It is an arithmetic number, because the mean of its divisors is an integer number (8338560).

Almost surely, 2^64528577 is an apocalyptic number.

It is an amenable number.

64528577 is a deficient number, since it is larger than the sum of its proper divisors (2179903).

64528577 is a wasteful number, since it uses less digits than its factorization.

64528577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3103.

The product of its digits is 470400, while the sum is 44.

The square root of 64528577 is about 8032.9681313945. The cubic root of 64528577 is about 401.0981843022.

The spelling of 64528577 in words is "sixty-four million, five hundred twenty-eight thousand, five hundred seventy-seven".