64535515 has 8 divisors (see below), whose sum is σ = 84482928. Its totient is φ = 46934880.

The previous prime is 64535509. The next prime is 64535563. The reversal of 64535515 is 51553546.

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

It is not a de Polignac number, because 64535515 - 2³ = 64535507 is a prime.

It is a Duffinian number.

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, 586632 + ... + 586741.

It is an arithmetic number, because the mean of its divisors is an integer number (10560366).

Almost surely, 2^64535515 is an apocalyptic number.

64535515 is a deficient number, since it is larger than the sum of its proper divisors (19947413).

64535515 is a wasteful number, since it uses less digits than its factorization.

64535515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173389.

The product of its digits is 45000, while the sum is 34.

The square root of 64535515 is about 8033.3999651455. The cubic root of 64535515 is about 401.1125589127.

The spelling of 64535515 in words is "sixty-four million, five hundred thirty-five thousand, five hundred fifteen".