64601305 has 4 divisors (see below), whose sum is σ = 77521572. Its totient is φ = 51681040.

The previous prime is 64601287. The next prime is 64601323. The reversal of 64601305 is 50310646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50310646 = 2 ⋅25155323.

It is an interprime number because it is at equal distance from previous prime (64601287) and next prime (64601323).

It can be written as a sum of positive squares in 2 ways, for example, as 17774656 + 46826649 = 4216^2 + 6843^2 .

It is a de Polignac number, because none of the positive numbers 2^k-64601305 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64601305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6460126 + ... + 6460135.

It is an arithmetic number, because the mean of its divisors is an integer number (19380393).

Almost surely, 2^64601305 is an apocalyptic number.

It is an amenable number.

64601305 is a deficient number, since it is larger than the sum of its proper divisors (12920267).

64601305 is a wasteful number, since it uses less digits than its factorization.

64601305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12920266.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 64601305 is about 8037.4937013972. The cubic root of 64601305 is about 401.2488158400.

The spelling of 64601305 in words is "sixty-four million, six hundred one thousand, three hundred five".