64532013 has 16 divisors (see below), whose sum is σ = 105899136. Its totient is φ = 34038720.

The previous prime is 64532011. The next prime is 64532023. The reversal of 64532013 is 31023546.

It is a happy number.

It is not a de Polignac number, because 64532013 - 2¹ = 64532011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64532011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117918 + ... + 118463.

It is an arithmetic number, because the mean of its divisors is an integer number (6618696).

Almost surely, 2^64532013 is an apocalyptic number.

It is an amenable number.

64532013 is a deficient number, since it is larger than the sum of its proper divisors (41367123).

64532013 is a wasteful number, since it uses less digits than its factorization.

64532013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236404.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 64532013 is about 8033.1819971914. The cubic root of 64532013 is about 401.1053033646.

Adding to 64532013 its reverse (31023546), we get a palindrome (95555559).

The spelling of 64532013 in words is "sixty-four million, five hundred thirty-two thousand, thirteen".