125002025 has 6 divisors (see below), whose sum is σ = 155002542. Its totient is φ = 100001600.

The previous prime is 125001997. The next prime is 125002027. The reversal of 125002025 is 520200521.

It can be written as a sum of positive squares in 3 ways, for example, as 4946176 + 120055849 = 2224^2 + 10957^2 .

It is not a de Polignac number, because 125002025 - 2¹⁶ = 124936489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125001994 and 125002012.

It is not an unprimeable number, because it can be changed into a prime (125002027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2500016 + ... + 2500065.

It is an arithmetic number, because the mean of its divisors is an integer number (25833757).

Almost surely, 2^125002025 is an apocalyptic number.

It is an amenable number.

125002025 is a deficient number, since it is larger than the sum of its proper divisors (30000517).

125002025 is an equidigital number, since it uses as much as digits as its factorization.

125002025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000091 (or 5000086 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 125002025 is about 11180.4304478853. The cubic root of 125002025 is about 500.0026999854.

Adding to 125002025 its reverse (520200521), we get a palindrome (645202546).

The spelling of 125002025 in words is "one hundred twenty-five million, two thousand, twenty-five".