53172686 has 8 divisors (see below), whose sum is σ = 91153200. Its totient is φ = 22788288.

The previous prime is 53172683. The next prime is 53172701. The reversal of 53172686 is 68627135.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53172683) 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, 1899011 + ... + 1899038.

It is an arithmetic number, because the mean of its divisors is an integer number (11394150).

Almost surely, 2^53172686 is an apocalyptic number.

53172686 is a deficient number, since it is larger than the sum of its proper divisors (37980514).

53172686 is a wasteful number, since it uses less digits than its factorization.

53172686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798058.

The product of its digits is 60480, while the sum is 38.

The square root of 53172686 is about 7291.9603674184. The cubic root of 53172686 is about 376.0360941282.

The spelling of 53172686 in words is "fifty-three million, one hundred seventy-two thousand, six hundred eighty-six".