125126500025 has 6 divisors (see below), whose sum is σ = 155156860062. Its totient is φ = 100101200000.

The previous prime is 125126500003. The next prime is 125126500049. The reversal of 125126500025 is 520005621521.

It can be written as a sum of positive squares in 3 ways, for example, as 23658131344 + 101468368681 = 153812^2 + 318541^2 .

It is not a de Polignac number, because 125126500025 - 2¹⁴ = 125126483641 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, 2502529976 + ... + 2502530025.

It is an arithmetic number, because the mean of its divisors is an integer number (25859476677).

Almost surely, 2^125126500025 is an apocalyptic number.

It is an amenable number.

125126500025 is a deficient number, since it is larger than the sum of its proper divisors (30030360037).

125126500025 is an equidigital number, since it uses as much as digits as its factorization.

125126500025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005060011 (or 5005060006 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 125126500025 in words is "one hundred twenty-five billion, one hundred twenty-six million, five hundred thousand, twenty-five".