53171506 has 8 divisors (see below), whose sum is σ = 81702684. Its totient is φ = 25937280.

The previous prime is 53171497. The next prime is 53171513. The reversal of 53171506 is 60517135.

53171506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52345225 + 826281 = 7235^2 + 909^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324135 + ... + 324298.

Almost surely, 2^53171506 is an apocalyptic number.

53171506 is a deficient number, since it is larger than the sum of its proper divisors (28531178).

53171506 is a wasteful number, since it uses less digits than its factorization.

53171506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648476.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 53171506 is about 7291.8794559428. The cubic root of 53171506 is about 376.0333124627.

The spelling of 53171506 in words is "fifty-three million, one hundred seventy-one thousand, five hundred six".