125002515125 has 32 divisors (see below), whose sum is σ = 165223618560. Its totient is φ = 94094572800.

The previous prime is 125002515109. The next prime is 125002515137. The reversal of 125002515125 is 521515200521.

It is not a de Polignac number, because 125002515125 - 2⁴ = 125002515109 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13525256 + ... + 13534494.

It is an arithmetic number, because the mean of its divisors is an integer number (5163238080).

Almost surely, 2^125002515125 is an apocalyptic number.

It is an amenable number.

125002515125 is a deficient number, since it is larger than the sum of its proper divisors (40221103435).

125002515125 is an equidigital number, since it uses as much as digits as its factorization.

125002515125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15638 (or 15628 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 29.

Adding to 125002515125 its reverse (521515200521), we get a palindrome (646517715646).

The spelling of 125002515125 in words is "one hundred twenty-five billion, two million, five hundred fifteen thousand, one hundred twenty-five".