57006271 has 4 divisors (see below), whose sum is σ = 65150032. Its totient is φ = 48862512.

The previous prime is 57006239. The next prime is 57006281. The reversal of 57006271 is 17260075.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57006271 - 2⁵ = 57006239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57006281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4071870 + ... + 4071883.

It is an arithmetic number, because the mean of its divisors is an integer number (16287508).

Almost surely, 2^57006271 is an apocalyptic number.

57006271 is a deficient number, since it is larger than the sum of its proper divisors (8143761).

57006271 is an equidigital number, since it uses as much as digits as its factorization.

57006271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8143760.

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

The square root of 57006271 is about 7550.2497309692. The cubic root of 57006271 is about 384.8642260315.

The spelling of 57006271 in words is "fifty-seven million, six thousand, two hundred seventy-one".