57571457 has 4 divisors (see below), whose sum is σ = 58109616. Its totient is φ = 57033300.

The previous prime is 57571447. The next prime is 57571471. The reversal of 57571457 is 75417575.

It is a happy number.

57571457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57571457 - 2¹⁰ = 57570433 is a prime.

It is a super-2 number, since 2×57571457² = 6628945322205698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57571417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268919 + ... + 269132.

It is an arithmetic number, because the mean of its divisors is an integer number (14527404).

Almost surely, 2^57571457 is an apocalyptic number.

It is an amenable number.

57571457 is a deficient number, since it is larger than the sum of its proper divisors (538159).

57571457 is a wasteful number, since it uses less digits than its factorization.

57571457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538158.

The product of its digits is 171500, while the sum is 41.

The square root of 57571457 is about 7587.5857161550. The cubic root of 57571457 is about 386.1319517201.

The spelling of 57571457 in words is "fifty-seven million, five hundred seventy-one thousand, four hundred fifty-seven".