57172060 has 96 divisors (see below), whose sum is σ = 138184704. Its totient is φ = 19680000.

The previous prime is 57172033. The next prime is 57172061. The reversal of 57172060 is 6027175.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57172061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 566010 + ... + 566110.

It is an arithmetic number, because the mean of its divisors is an integer number (1439424).

Almost surely, 2^57172060 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 57172060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69092352).

57172060 is an abundant number, since it is smaller than the sum of its proper divisors (81012644).

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

57172060 is a wasteful number, since it uses less digits than its factorization.

57172060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 57172060 is about 7561.2208009025. The cubic root of 57172060 is about 385.2369598774.

It can be divided in two parts, 5717 and 2060, that added together give a palindrome (7777).

The spelling of 57172060 in words is "fifty-seven million, one hundred seventy-two thousand, sixty".