57552857 has 2 divisors, whose sum is σ = 57552858. Its totient is φ = 57552856.

The previous prime is 57552851. The next prime is 57552893. The reversal of 57552857 is 75825575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30294016 + 27258841 = 5504^2 + 5221^2 .

It is a cyclic number.

It is not a de Polignac number, because 57552857 - 2¹² = 57548761 is a prime.

It is not a weakly prime, because it can be changed into another prime (57552851) 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 as a sum of consecutive naturals, namely, 28776428 + 28776429.

It is an arithmetic number, because the mean of its divisors is an integer number (28776429).

Almost surely, 2^57552857 is an apocalyptic number.

It is an amenable number.

57552857 is a deficient number, since it is larger than the sum of its proper divisors (1).

57552857 is an equidigital number, since it uses as much as digits as its factorization.

57552857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 490000, while the sum is 44.

The square root of 57552857 is about 7586.3599308232. The cubic root of 57552857 is about 386.0903638207.

The spelling of 57552857 in words is "fifty-seven million, five hundred fifty-two thousand, eight hundred fifty-seven".