125050450205 has 4 divisors (see below), whose sum is σ = 150060540252. Its totient is φ = 100040360160.

The previous prime is 125050450201. The next prime is 125050450243. The reversal of 125050450205 is 502054050521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502054050521 = 16889 ⋅29726689.

It can be written as a sum of positive squares in 2 ways, for example, as 94191906649 + 30858543556 = 306907^2 + 175666^2 .

It is not a de Polignac number, because 125050450205 - 2² = 125050450201 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 (125050450201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12505045016 + ... + 12505045025.

It is an arithmetic number, because the mean of its divisors is an integer number (37515135063).

Almost surely, 2^125050450205 is an apocalyptic number.

It is an amenable number.

125050450205 is a deficient number, since it is larger than the sum of its proper divisors (25010090047).

125050450205 is an equidigital number, since it uses as much as digits as its factorization.

125050450205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25010090046.

The product of its (nonzero) digits is 10000, while the sum is 29.

The spelling of 125050450205 in words is "one hundred twenty-five billion, fifty million, four hundred fifty thousand, two hundred five".