125535450141025 has 6 divisors (see below), whose sum is σ = 155663958174902. Its totient is φ = 100428360112800.

The previous prime is 125535450140983. The next prime is 125535450141043. The reversal of 125535450141025 is 520141054535521.

It can be written as a sum of positive squares in 3 ways, for example, as 36339665441121 + 89195784699904 = 6028239^2 + 9444352^2 .

It is a de Polignac number, because none of the positive numbers 2^k-125535450141025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2510709002796 + ... + 2510709002845.

Almost surely, 2^{125535450141025} is an apocalyptic number.

It is an amenable number.

125535450141025 is a deficient number, since it is larger than the sum of its proper divisors (30128508033877).

125535450141025 is an equidigital number, since it uses as much as digits as its factorization.

125535450141025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021418005651 (or 5021418005646 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 125535450141025 in words is "one hundred twenty-five trillion, five hundred thirty-five billion, four hundred fifty million, one hundred forty-one thousand, twenty-five".