57109172 has 12 divisors (see below), whose sum is σ = 100030980. Its totient is φ = 28528896.

The previous prime is 57109153. The next prime is 57109177. The reversal of 57109172 is 27190175.

It can be written as a sum of positive squares in 2 ways, for example, as 42562576 + 14546596 = 6524^2 + 3814^2 .

It is a super-2 number, since 2×57109172² = 6522915053051168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57109177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893 + ... + 10724.

It is an arithmetic number, because the mean of its divisors is an integer number (8335915).

Almost surely, 2^57109172 is an apocalyptic number.

It is an amenable number.

57109172 is a deficient number, since it is larger than the sum of its proper divisors (42921808).

57109172 is a wasteful number, since it uses less digits than its factorization.

57109172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12850 (or 12848 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 57109172 is about 7557.0610689606. The cubic root of 57109172 is about 385.0956573464.

The spelling of 57109172 in words is "fifty-seven million, one hundred nine thousand, one hundred seventy-two".