65379563 has 4 divisors (see below), whose sum is σ = 65621088. Its totient is φ = 65138040.

The previous prime is 65379541. The next prime is 65379599. The reversal of 65379563 is 36597356.

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 65379563 - 2⁶ = 65379499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65379163) by changing a digit.

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, 120356 + ... + 120897.

It is an arithmetic number, because the mean of its divisors is an integer number (16405272).

Almost surely, 2^65379563 is an apocalyptic number.

65379563 is a deficient number, since it is larger than the sum of its proper divisors (241525).

65379563 is a wasteful number, since it uses less digits than its factorization.

65379563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241524.

The product of its digits is 510300, while the sum is 44.

The square root of 65379563 is about 8085.7629819331. The cubic root of 65379563 is about 402.8536824106.

The spelling of 65379563 in words is "sixty-five million, three hundred seventy-nine thousand, five hundred sixty-three".