1670255057 has 2 divisors, whose sum is σ = 1670255058. Its totient is φ = 1670255056.

The previous prime is 1670255047. The next prime is 1670255077. The reversal of 1670255057 is 7505520761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1415565376 + 254689681 = 37624^2 + 15959^2 .

It is a cyclic number.

It is not a de Polignac number, because 1670255057 - 2²⁴ = 1653477841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1670255057.

It is not a weakly prime, because it can be changed into another prime (1670255017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835127528 + 835127529.

It is an arithmetic number, because the mean of its divisors is an integer number (835127529).

Almost surely, 2^1670255057 is an apocalyptic number.

It is an amenable number.

1670255057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670255057 is an equidigital number, since it uses as much as digits as its factorization.

1670255057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73500, while the sum is 38.

The square root of 1670255057 is about 40868.7540426669. The cubic root of 1670255057 is about 1186.4813929895.

The spelling of 1670255057 in words is "one billion, six hundred seventy million, two hundred fifty-five thousand, fifty-seven".