65450352013 has 4 divisors (see below), whose sum is σ = 65673732348. Its totient is φ = 65226971680.

The previous prime is 65450351983. The next prime is 65450352043. The reversal of 65450352013 is 31025305456.

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

It is an interprime number because it is at equal distance from previous prime (65450351983) and next prime (65450352043).

It can be written as a sum of positive squares in 2 ways, for example, as 47131541604 + 18318810409 = 217098^2 + 135347^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65450352013 is a prime.

It is a super-2 number, since 2×65450352013² (a number of 22 digits) contains 22 as substring.

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 65450352013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65450352043) 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, 111689728 + ... + 111690313.

It is an arithmetic number, because the mean of its divisors is an integer number (16418433087).

Almost surely, 2^65450352013 is an apocalyptic number.

It is an amenable number.

65450352013 is a deficient number, since it is larger than the sum of its proper divisors (223380335).

65450352013 is a wasteful number, since it uses less digits than its factorization.

65450352013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223380334.

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 65450352013 its reverse (31025305456), we get a palindrome (96475657469).

The spelling of 65450352013 in words is "sixty-five billion, four hundred fifty million, three hundred fifty-two thousand, thirteen".