1252525117 has 2 divisors, whose sum is σ = 1252525118. Its totient is φ = 1252525116.

The previous prime is 1252525111. The next prime is 1252525189. The reversal of 1252525117 is 7115252521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1224020196 + 28504921 = 34986^2 + 5339^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252525117 - 2¹⁹ = 1252000829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252525111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626262558 + 626262559.

It is an arithmetic number, because the mean of its divisors is an integer number (626262559).

Almost surely, 2^1252525117 is an apocalyptic number.

It is an amenable number.

1252525117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252525117 is an equidigital number, since it uses as much as digits as its factorization.

1252525117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7000, while the sum is 31.

The square root of 1252525117 is about 35391.0315899381. The cubic root of 1252525117 is about 1077.9422170865.

Adding to 1252525117 its reverse (7115252521), we get a palindrome (8367777638).

The spelling of 1252525117 in words is "one billion, two hundred fifty-two million, five hundred twenty-five thousand, one hundred seventeen".