57172037 has 8 divisors (see below), whose sum is σ = 65191896. Its totient is φ = 49669632.

The previous prime is 57172033. The next prime is 57172061. The reversal of 57172037 is 73027175.

It can be written as a sum of positive squares in 4 ways, for example, as 410881 + 56761156 = 641^2 + 7534^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57172037 - 2² = 57172033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57171994 and 57172012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57172033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129128 + ... + 129569.

It is an arithmetic number, because the mean of its divisors is an integer number (8148987).

Almost surely, 2^57172037 is an apocalyptic number.

It is an amenable number.

57172037 is a deficient number, since it is larger than the sum of its proper divisors (8019859).

57172037 is a wasteful number, since it uses less digits than its factorization.

57172037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258727.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 57172037 is about 7561.2192799839. The cubic root of 57172037 is about 385.2369082178.

The spelling of 57172037 in words is "fifty-seven million, one hundred seventy-two thousand, thirty-seven".