125125015025 has 6 divisors (see below), whose sum is σ = 155155018662. Its totient is φ = 100100012000.

The previous prime is 125125015003. The next prime is 125125015049. The reversal of 125125015025 is 520510521521.

It can be written as a sum of positive squares in 3 ways, for example, as 5304500224 + 119820514801 = 72832^2 + 346151^2 .

It is not a de Polignac number, because 125125015025 - 2¹⁶ = 125124949489 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, 2502500276 + ... + 2502500325.

It is an arithmetic number, because the mean of its divisors is an integer number (25859169777).

Almost surely, 2^125125015025 is an apocalyptic number.

It is an amenable number.

125125015025 is a deficient number, since it is larger than the sum of its proper divisors (30030003637).

125125015025 is an equidigital number, since it uses as much as digits as its factorization.

125125015025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005000611 (or 5005000606 counting only the distinct ones).

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

Adding to 125125015025 its reverse (520510521521), we get a palindrome (645635536546).

The spelling of 125125015025 in words is "one hundred twenty-five billion, one hundred twenty-five million, fifteen thousand, twenty-five".