57473491249 has 2 divisors, whose sum is σ = 57473491250. Its totient is φ = 57473491248.

The previous prime is 57473491223. The next prime is 57473491253. The reversal of 57473491249 is 94219437475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38171390625 + 19302100624 = 195375^2 + 138932^2 .

It is a cyclic number.

It is not a de Polignac number, because 57473491249 - 2²⁵ = 57439936817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57473491249.

It is not a weakly prime, because it can be changed into another prime (57473495249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28736745624 + 28736745625.

It is an arithmetic number, because the mean of its divisors is an integer number (28736745625).

Almost surely, 2^57473491249 is an apocalyptic number.

It is an amenable number.

57473491249 is a deficient number, since it is larger than the sum of its proper divisors (1).

57473491249 is an equidigital number, since it uses as much as digits as its factorization.

57473491249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 55.

The spelling of 57473491249 in words is "fifty-seven billion, four hundred seventy-three million, four hundred ninety-one thousand, two hundred forty-nine".