64653013 has 4 divisors (see below), whose sum is σ = 64670688. Its totient is φ = 64635340.

The previous prime is 64652999. The next prime is 64653053. The reversal of 64653013 is 31035646.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31035646 = 2 ⋅15517823.

It is a cyclic number.

It is not a de Polignac number, because 64653013 - 2⁵ = 64652981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64653053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081 + ... + 11422.

It is an arithmetic number, because the mean of its divisors is an integer number (16167672).

Almost surely, 2^64653013 is an apocalyptic number.

It is an amenable number.

64653013 is a deficient number, since it is larger than the sum of its proper divisors (17675).

64653013 is a wasteful number, since it uses less digits than its factorization.

64653013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17674.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 64653013 is about 8040.7097323557. The cubic root of 64653013 is about 401.3558427832.

Adding to 64653013 its reverse (31035646), we get a palindrome (95688659).

The spelling of 64653013 in words is "sixty-four million, six hundred fifty-three thousand, thirteen".