57405655057 has 2 divisors, whose sum is σ = 57405655058. Its totient is φ = 57405655056.

The previous prime is 57405655049. The next prime is 57405655133. The reversal of 57405655057 is 75055650475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41862796816 + 15542858241 = 204604^2 + 124671^2 .

It is a cyclic number.

It is not a de Polignac number, because 57405655057 - 2³ = 57405655049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57405655057.

It is not a weakly prime, because it can be changed into another prime (57405635057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28702827528 + 28702827529.

It is an arithmetic number, because the mean of its divisors is an integer number (28702827529).

Almost surely, 2^57405655057 is an apocalyptic number.

It is an amenable number.

57405655057 is a deficient number, since it is larger than the sum of its proper divisors (1).

57405655057 is an equidigital number, since it uses as much as digits as its factorization.

57405655057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3675000, while the sum is 49.

The spelling of 57405655057 in words is "fifty-seven billion, four hundred five million, six hundred fifty-five thousand, fifty-seven".