1252053557 has 2 divisors, whose sum is σ = 1252053558. Its totient is φ = 1252053556.

The previous prime is 1252053529. The next prime is 1252053577. The reversal of 1252053557 is 7553502521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1142034436 + 110019121 = 33794^2 + 10489^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252053557 - 2⁶ = 1252053493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252053527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626026778 + 626026779.

It is an arithmetic number, because the mean of its divisors is an integer number (626026779).

Almost surely, 2^1252053557 is an apocalyptic number.

It is an amenable number.

1252053557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252053557 is an equidigital number, since it uses as much as digits as its factorization.

1252053557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 1252053557 is about 35384.3688229704. The cubic root of 1252053557 is about 1077.8069228638.

The spelling of 1252053557 in words is "one billion, two hundred fifty-two million, fifty-three thousand, five hundred fifty-seven".