53171473 has 4 divisors (see below), whose sum is σ = 53205220. Its totient is φ = 53137728.

The previous prime is 53171467. The next prime is 53171477. The reversal of 53171473 is 37417135.

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 6290064 + 46881409 = 2508^2 + 6847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53171473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53171477) 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, 14388 + ... + 17701.

It is an arithmetic number, because the mean of its divisors is an integer number (13301305).

Almost surely, 2^53171473 is an apocalyptic number.

It is an amenable number.

53171473 is a deficient number, since it is larger than the sum of its proper divisors (33747).

53171473 is a wasteful number, since it uses less digits than its factorization.

53171473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33746.

The product of its digits is 8820, while the sum is 31.

The square root of 53171473 is about 7291.8771931513. The cubic root of 53171473 is about 376.0332346698.

The spelling of 53171473 in words is "fifty-three million, one hundred seventy-one thousand, four hundred seventy-three".