53172688 has 80 divisors (see below), whose sum is σ = 114278400. Its totient is φ = 23886720.

The previous prime is 53172683. The next prime is 53172701. The reversal of 53172688 is 88627135.

53172688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 53172688.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673033 + ... + 673111.

It is an arithmetic number, because the mean of its divisors is an integer number (1428480).

Almost surely, 2^53172688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53172688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57139200).

53172688 is an abundant number, since it is smaller than the sum of its proper divisors (61105712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53172688 is a wasteful number, since it uses less digits than its factorization.

53172688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 194 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 53172688 is about 7291.9605045557. The cubic root of 53172688 is about 376.0360988429.

The spelling of 53172688 in words is "fifty-three million, one hundred seventy-two thousand, six hundred eighty-eight".