65202013 has 4 divisors (see below), whose sum is σ = 66792348. Its totient is φ = 63611680.

The previous prime is 65202001. The next prime is 65202041. The reversal of 65202013 is 31020256.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8982009 + 56220004 = 2997^2 + 7498^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65202013 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 (65202043) 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, 795106 + ... + 795187.

It is an arithmetic number, because the mean of its divisors is an integer number (16698087).

Almost surely, 2^65202013 is an apocalyptic number.

It is an amenable number.

65202013 is a deficient number, since it is larger than the sum of its proper divisors (1590335).

65202013 is a wasteful number, since it uses less digits than its factorization.

65202013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590334.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 65202013 is about 8074.7763436519. The cubic root of 65202013 is about 402.4886778447.

Adding to 65202013 its reverse (31020256), we get a palindrome (96222269).

The spelling of 65202013 in words is "sixty-five million, two hundred two thousand, thirteen".