57471493 has 2 divisors, whose sum is σ = 57471494. Its totient is φ = 57471492.

The previous prime is 57471413. The next prime is 57471499. The reversal of 57471493 is 39417475.

57471493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51868804 + 5602689 = 7202^2 + 2367^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57471493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57471499) 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 as a sum of consecutive naturals, namely, 28735746 + 28735747.

It is an arithmetic number, because the mean of its divisors is an integer number (28735747).

Almost surely, 2^57471493 is an apocalyptic number.

It is an amenable number.

57471493 is a deficient number, since it is larger than the sum of its proper divisors (1).

57471493 is an equidigital number, since it uses as much as digits as its factorization.

57471493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 57471493 is about 7580.9955151022. The cubic root of 57471493 is about 385.9083359529.

The spelling of 57471493 in words is "fifty-seven million, four hundred seventy-one thousand, four hundred ninety-three".