57126557417 has 2 divisors, whose sum is σ = 57126557418. Its totient is φ = 57126557416.

The previous prime is 57126557399. The next prime is 57126557479. The reversal of 57126557417 is 71475562175.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37417486096 + 19709071321 = 193436^2 + 140389^2 .

It is a cyclic number.

It is not a de Polignac number, because 57126557417 - 2¹⁸ = 57126295273 is a prime.

It is not a weakly prime, because it can be changed into another prime (57126557617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28563278708 + 28563278709.

It is an arithmetic number, because the mean of its divisors is an integer number (28563278709).

Almost surely, 2^57126557417 is an apocalyptic number.

It is an amenable number.

57126557417 is a deficient number, since it is larger than the sum of its proper divisors (1).

57126557417 is an equidigital number, since it uses as much as digits as its factorization.

57126557417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2058000, while the sum is 50.

The spelling of 57126557417 in words is "fifty-seven billion, one hundred twenty-six million, five hundred fifty-seven thousand, four hundred seventeen".