53175220 has 48 divisors (see below), whose sum is σ = 129548160. Its totient is φ = 17956224.

The previous prime is 53175217. The next prime is 53175251. The reversal of 53175220 is 2257135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6546 + ... + 12214.

It is an arithmetic number, because the mean of its divisors is an integer number (2698920).

Almost surely, 2^53175220 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 53175220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64774080).

53175220 is an abundant number, since it is smaller than the sum of its proper divisors (76372940).

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

53175220 is a wasteful number, since it uses less digits than its factorization.

53175220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5752 (or 5750 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 53175220 is about 7292.1341183497. The cubic root of 53175220 is about 376.0420674979.

The spelling of 53175220 in words is "fifty-three million, one hundred seventy-five thousand, two hundred twenty".