1252210125 has 32 divisors (see below), whose sum is σ = 2150913024. Its totient is φ = 646296000.

The previous prime is 1252210103. The next prime is 1252210139. The reversal of 1252210125 is 5210122521.

1252210125 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1252210125 - 2⁵ = 1252210093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42234 + ... + 65483.

It is an arithmetic number, because the mean of its divisors is an integer number (67216032).

Almost surely, 2^1252210125 is an apocalyptic number.

1252210125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1252210125 is a deficient number, since it is larger than the sum of its proper divisors (898702899).

1252210125 is a wasteful number, since it uses less digits than its factorization.

1252210125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107766 (or 107756 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1252210125 is about 35386.5811431396. The cubic root of 1252210125 is about 1077.8518472042.

Adding to 1252210125 its reverse (5210122521), we get a palindrome (6462332646).

The spelling of 1252210125 in words is "one billion, two hundred fifty-two million, two hundred ten thousand, one hundred twenty-five".