53171772 has 24 divisors (see below), whose sum is σ = 124185600. Its totient is φ = 17707056.

The previous prime is 53171749. The next prime is 53171843. The reversal of 53171772 is 27717135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22629 + ... + 24867.

It is an arithmetic number, because the mean of its divisors is an integer number (5174400).

Almost surely, 2^53171772 is an apocalyptic number.

It is an amenable number.

53171772 is an abundant number, since it is smaller than the sum of its proper divisors (71013828).

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

53171772 is a wasteful number, since it uses less digits than its factorization.

53171772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225 (or 4223 counting only the distinct ones).

The product of its digits is 10290, while the sum is 33.

The square root of 53171772 is about 7291.8976953877. The cubic root of 53171772 is about 376.0339395197.

The spelling of 53171772 in words is "fifty-three million, one hundred seventy-one thousand, seven hundred seventy-two".