1252535589 has 8 divisors (see below), whose sum is σ = 1855608320. Its totient is φ = 835023708.

The previous prime is 1252535573. The next prime is 1252535593. The reversal of 1252535589 is 9855352521.

It is a happy number.

1252535589 is a `hidden beast` number, since 12 + 5 + 2 + 53 + 5 + 589 = 666.

It is not a de Polignac number, because 1252535589 - 2⁴ = 1252535573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252535569) 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 in 7 ways as a sum of consecutive naturals, for example, 23195077 + ... + 23195130.

It is an arithmetic number, because the mean of its divisors is an integer number (231951040).

Almost surely, 2^1252535589 is an apocalyptic number.

It is an amenable number.

1252535589 is a deficient number, since it is larger than the sum of its proper divisors (603072731).

1252535589 is an equidigital number, since it uses as much as digits as its factorization.

1252535589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46390216 (or 46390210 counting only the distinct ones).

The product of its digits is 540000, while the sum is 45.

The square root of 1252535589 is about 35391.1795367151. The cubic root of 1252535589 is about 1077.9452211991.

The spelling of 1252535589 in words is "one billion, two hundred fifty-two million, five hundred thirty-five thousand, five hundred eighty-nine".