1275250057 has 2 divisors, whose sum is σ = 1275250058. Its totient is φ = 1275250056.

The previous prime is 1275250051. The next prime is 1275250133. The reversal of 1275250057 is 7500525721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1071645696 + 203604361 = 32736^2 + 14269^2 .

It is a cyclic number.

It is not a de Polignac number, because 1275250057 - 2³ = 1275250049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1275250051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637625028 + 637625029.

It is an arithmetic number, because the mean of its divisors is an integer number (637625029).

Almost surely, 2^1275250057 is an apocalyptic number.

It is an amenable number.

1275250057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275250057 is an equidigital number, since it uses as much as digits as its factorization.

1275250057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 1275250057 is about 35710.6434694196. The cubic root of 1275250057 is about 1084.4223267936.

Adding to 1275250057 its reverse (7500525721), we get a palindrome (8775775778).

The spelling of 1275250057 in words is "one billion, two hundred seventy-five million, two hundred fifty thousand, fifty-seven".