57171732 has 12 divisors (see below), whose sum is σ = 133400736. Its totient is φ = 19057240.

The previous prime is 57171727. The next prime is 57171739. The reversal of 57171732 is 23717175.

57171732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 57171693 and 57171702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57171739) 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 3 ways as a sum of consecutive naturals, for example, 2382144 + ... + 2382167.

It is an arithmetic number, because the mean of its divisors is an integer number (11116728).

Almost surely, 2^57171732 is an apocalyptic number.

It is an amenable number.

57171732 is an abundant number, since it is smaller than the sum of its proper divisors (76229004).

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

57171732 is a wasteful number, since it uses less digits than its factorization.

57171732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4764318 (or 4764316 counting only the distinct ones).

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

The square root of 57171732 is about 7561.1991112521. The cubic root of 57171732 is about 385.2362231657.

It can be divided in two parts, 5717173 and 2, that added together give a palindrome (5717175).

The spelling of 57171732 in words is "fifty-seven million, one hundred seventy-one thousand, seven hundred thirty-two".