57081135737 has 2 divisors, whose sum is σ = 57081135738. Its totient is φ = 57081135736.

The previous prime is 57081135721. The next prime is 57081135751. The reversal of 57081135737 is 73753118075.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55665796096 + 1415339641 = 235936^2 + 37621^2 .

It is a cyclic number.

It is not a de Polignac number, because 57081135737 - 2⁴ = 57081135721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57081135691 and 57081135700.

It is not a weakly prime, because it can be changed into another prime (57081135037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28540567868 + 28540567869.

It is an arithmetic number, because the mean of its divisors is an integer number (28540567869).

Almost surely, 2^57081135737 is an apocalyptic number.

It is an amenable number.

57081135737 is a deficient number, since it is larger than the sum of its proper divisors (1).

57081135737 is an equidigital number, since it uses as much as digits as its factorization.

57081135737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 617400, while the sum is 47.

The spelling of 57081135737 in words is "fifty-seven billion, eighty-one million, one hundred thirty-five thousand, seven hundred thirty-seven".