57071457 has 6 divisors (see below), whose sum is σ = 82436562. Its totient is φ = 38047632.

The previous prime is 57071447. The next prime is 57071461. The reversal of 57071457 is 75417075.

It can be written as a sum of positive squares in only one way, i.e., 31911201 + 25160256 = 5649^2 + 5016^2 .

It is not a de Polignac number, because 57071457 - 2⁶ = 57071393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57071447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3170628 + ... + 3170645.

It is an arithmetic number, because the mean of its divisors is an integer number (13739427).

Almost surely, 2^57071457 is an apocalyptic number.

It is an amenable number.

57071457 is a deficient number, since it is larger than the sum of its proper divisors (25365105).

57071457 is a wasteful number, since it uses less digits than its factorization.

57071457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6341279 (or 6341276 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 36.

The square root of 57071457 is about 7554.5653084741. The cubic root of 57071457 is about 385.0108660564.

It can be divided in two parts, 570 and 71457, that added together give a palindrome (72027).

The spelling of 57071457 in words is "fifty-seven million, seventy-one thousand, four hundred fifty-seven".