53171263 has 4 divisors (see below), whose sum is σ = 54407848. Its totient is φ = 51934680.

The previous prime is 53171233. The next prime is 53171269. The reversal of 53171263 is 36217135.

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 53171263 - 2⁹ = 53170751 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 (53171269) 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, 618228 + ... + 618313.

It is an arithmetic number, because the mean of its divisors is an integer number (13601962).

Almost surely, 2^53171263 is an apocalyptic number.

53171263 is a deficient number, since it is larger than the sum of its proper divisors (1236585).

53171263 is a wasteful number, since it uses less digits than its factorization.

53171263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236584.

The product of its digits is 3780, while the sum is 28.

The square root of 53171263 is about 7291.8627935528. The cubic root of 53171263 is about 376.0327396231.

Adding to 53171263 its reverse (36217135), we get a palindrome (89388398).

The spelling of 53171263 in words is "fifty-three million, one hundred seventy-one thousand, two hundred sixty-three".