57048735481 has 2 divisors, whose sum is σ = 57048735482. Its totient is φ = 57048735480.

The previous prime is 57048735463. The next prime is 57048735559. The reversal of 57048735481 is 18453784075.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56901331600 + 147403881 = 238540^2 + 12141^2 .

It is a cyclic number.

It is not a de Polignac number, because 57048735481 - 2¹³ = 57048727289 is a prime.

It is a super-2 number, since 2×57048735481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57048735461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28524367740 + 28524367741.

It is an arithmetic number, because the mean of its divisors is an integer number (28524367741).

Almost surely, 2^57048735481 is an apocalyptic number.

It is an amenable number.

57048735481 is a deficient number, since it is larger than the sum of its proper divisors (1).

57048735481 is an equidigital number, since it uses as much as digits as its factorization.

57048735481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3763200, while the sum is 52.

The spelling of 57048735481 in words is "fifty-seven billion, forty-eight million, seven hundred thirty-five thousand, four hundred eighty-one".