53317263 has 4 divisors (see below), whose sum is σ = 71089688. Its totient is φ = 35544840.

The previous prime is 53317217. The next prime is 53317273. The reversal of 53317263 is 36271335.

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

It is not a de Polignac number, because 53317263 - 2⁹ = 53316751 is a prime.

It is a super-2 number, since 2×53317263² = 5685461067622338, which 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 53317263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53317273) 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, 8886208 + ... + 8886213.

It is an arithmetic number, because the mean of its divisors is an integer number (17772422).

Almost surely, 2^53317263 is an apocalyptic number.

53317263 is a deficient number, since it is larger than the sum of its proper divisors (17772425).

53317263 is a wasteful number, since it uses less digits than its factorization.

53317263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17772424.

The product of its digits is 11340, while the sum is 30.

The square root of 53317263 is about 7301.8670899983. The cubic root of 53317263 is about 376.3766008478.

Adding to 53317263 its reverse (36271335), we get a palindrome (89588598).

The spelling of 53317263 in words is "fifty-three million, three hundred seventeen thousand, two hundred sixty-three".