57271906 has 8 divisors (see below), whose sum is σ = 87528924. Its totient is φ = 28095600.

The previous prime is 57271889. The next prime is 57271913. The reversal of 57271906 is 60917275.

It can be written as a sum of positive squares in 2 ways, for example, as 50537881 + 6734025 = 7109^2 + 2595^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270045 + ... + 270256.

Almost surely, 2^57271906 is an apocalyptic number.

57271906 is a deficient number, since it is larger than the sum of its proper divisors (30257018).

57271906 is a wasteful number, since it uses less digits than its factorization.

57271906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540356.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 57271906 is about 7567.8204259879. The cubic root of 57271906 is about 385.4610903334.

The spelling of 57271906 in words is "fifty-seven million, two hundred seventy-one thousand, nine hundred six".