1252667057 has 2 divisors, whose sum is σ = 1252667058. Its totient is φ = 1252667056.

The previous prime is 1252667029. The next prime is 1252667089. The reversal of 1252667057 is 7507662521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 961248016 + 291419041 = 31004^2 + 17071^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252667057 - 2¹⁶ = 1252601521 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252067057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626333528 + 626333529.

It is an arithmetic number, because the mean of its divisors is an integer number (626333529).

Almost surely, 2^1252667057 is an apocalyptic number.

It is an amenable number.

1252667057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252667057 is an equidigital number, since it uses as much as digits as its factorization.

1252667057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 1252667057 is about 35393.0368434244. The cubic root of 1252667057 is about 1077.9829341247.

The spelling of 1252667057 in words is "one billion, two hundred fifty-two million, six hundred sixty-seven thousand, fifty-seven".