65253917 has 4 divisors (see below), whose sum is σ = 65287356. Its totient is φ = 65220480.

The previous prime is 65253911. The next prime is 65253943. The reversal of 65253917 is 71935256.

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 37100281 + 28153636 = 6091^2 + 5306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65253917 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 (65253911) 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, 13598 + ... + 17759.

It is an arithmetic number, because the mean of its divisors is an integer number (16321839).

Almost surely, 2^65253917 is an apocalyptic number.

It is an amenable number.

65253917 is a deficient number, since it is larger than the sum of its proper divisors (33439).

65253917 is a wasteful number, since it uses less digits than its factorization.

65253917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33438.

The product of its digits is 56700, while the sum is 38.

The square root of 65253917 is about 8077.9896632764. The cubic root of 65253917 is about 402.5954497599.

The spelling of 65253917 in words is "sixty-five million, two hundred fifty-three thousand, nine hundred seventeen".