64504499 has 4 divisors (see below), whose sum is σ = 64620864. Its totient is φ = 64388136.

The previous prime is 64504493. The next prime is 64504537. The reversal of 64504499 is 99440546.

64504499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64504499 - 2⁴ = 64504483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64504493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57347 + ... + 58460.

It is an arithmetic number, because the mean of its divisors is an integer number (16155216).

Almost surely, 2^64504499 is an apocalyptic number.

64504499 is a deficient number, since it is larger than the sum of its proper divisors (116365).

64504499 is a wasteful number, since it uses less digits than its factorization.

64504499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116364.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 64504499 is about 8031.4692927260. The cubic root of 64504499 is about 401.0482899041.

The spelling of 64504499 in words is "sixty-four million, five hundred four thousand, four hundred ninety-nine".