125435025 has 18 divisors (see below), whose sum is σ = 224668470. Its totient is φ = 66898560.

The previous prime is 125434997. The next prime is 125435029. The reversal of 125435025 is 520534521.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 17424 + 125417601 = 132^2 + 11199^2 .

It is not a de Polignac number, because 125435025 - 2⁸ = 125434769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125435025.

It is not an unprimeable number, because it can be changed into a prime (125435029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 278520 + ... + 278969.

Almost surely, 2^125435025 is an apocalyptic number.

125435025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125435025 is a deficient number, since it is larger than the sum of its proper divisors (99233445).

125435025 is a wasteful number, since it uses less digits than its factorization.

125435025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557505 (or 557497 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 125435025 is about 11199.7778995835. Note that the first 3 decimals coincide. The cubic root of 125435025 is about 500.5793617540.

Adding to 125435025 its reverse (520534521), we get a palindrome (645969546).

The spelling of 125435025 in words is "one hundred twenty-five million, four hundred thirty-five thousand, twenty-five".