1252425125 has 32 divisors (see below), whose sum is σ = 1789442304. Its totient is φ = 857304000.

The previous prime is 1252425113. The next prime is 1252425131. The reversal of 1252425125 is 5215242521.

It is a happy number.

It is not a de Polignac number, because 1252425125 - 2⁸ = 1252424869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 771815 + ... + 773435.

It is an arithmetic number, because the mean of its divisors is an integer number (55920072).

Almost surely, 2^1252425125 is an apocalyptic number.

It is an amenable number.

1252425125 is a deficient number, since it is larger than the sum of its proper divisors (537017179).

1252425125 is an equidigital number, since it uses as much as digits as its factorization.

1252425125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526 (or 2516 counting only the distinct ones).

The product of its digits is 8000, while the sum is 29.

The square root of 1252425125 is about 35389.6188874647. The cubic root of 1252425125 is about 1077.9135314431.

Adding to 1252425125 its reverse (5215242521), we get a palindrome (6467667646).

The spelling of 1252425125 in words is "one billion, two hundred fifty-two million, four hundred twenty-five thousand, one hundred twenty-five".