64522513 has 8 divisors (see below), whose sum is σ = 70862400. Its totient is φ = 58261680.

The previous prime is 64522481. The next prime is 64522517. The reversal of 64522513 is 31522546.

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 64522513 - 2⁵ = 64522481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64522517) 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, 18045 + ... + 21322.

It is an arithmetic number, because the mean of its divisors is an integer number (8857800).

Almost surely, 2^64522513 is an apocalyptic number.

It is an amenable number.

64522513 is a deficient number, since it is larger than the sum of its proper divisors (6339887).

64522513 is a wasteful number, since it uses less digits than its factorization.

64522513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39527.

The product of its digits is 7200, while the sum is 28.

The square root of 64522513 is about 8032.5906779818. The cubic root of 64522513 is about 401.0856196593.

The spelling of 64522513 in words is "sixty-four million, five hundred twenty-two thousand, five hundred thirteen".