53171748 has 96 divisors (see below), whose sum is σ = 160267520. Its totient is φ = 14929920.

The previous prime is 53171737. The next prime is 53171749. The reversal of 53171748 is 84717135.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (53171749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45540 + ... + 46692.

Almost surely, 2^53171748 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 53171748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80133760).

53171748 is an abundant number, since it is smaller than the sum of its proper divisors (107095772).

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

53171748 is a wasteful number, since it uses less digits than its factorization.

53171748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234 (or 1226 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 53171748 is about 7291.8960497253. The cubic root of 53171748 is about 376.0338829433.

The spelling of 53171748 in words is "fifty-three million, one hundred seventy-one thousand, seven hundred forty-eight".