1000505057 has 2 divisors, whose sum is σ = 1000505058. Its totient is φ = 1000505056.

The previous prime is 1000505053. The next prime is 1000505081. The reversal of 1000505057 is 7505050001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 690428176 + 310076881 = 26276^2 + 17609^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000505057 - 2² = 1000505053 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000505053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500252528 + 500252529.

It is an arithmetic number, because the mean of its divisors is an integer number (500252529).

Almost surely, 2^1000505057 is an apocalyptic number.

It is an amenable number.

1000505057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000505057 is an equidigital number, since it uses as much as digits as its factorization.

1000505057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 875, while the sum is 23.

The square root of 1000505057 is about 31630.7612459770. The cubic root of 1000505057 is about 1000.1683239988.

Adding to 1000505057 its reverse (7505050001), we get a palindrome (8505555058).

The spelling of 1000505057 in words is "one billion, five hundred five thousand, fifty-seven".