125311225 has 12 divisors (see below), whose sum is σ = 167339116. Its totient is φ = 92537280.

The previous prime is 125311223. The next prime is 125311243. The reversal of 125311225 is 522113521.

It can be written as a sum of positive squares in 6 ways, for example, as 24127744 + 101183481 = 4912^2 + 10059^2 .

It is not a de Polignac number, because 125311225 - 2¹ = 125311223 is a prime.

It is a super-2 number, since 2×125311225² = 31405806222001250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125311196 and 125311205.

It is not an unprimeable number, because it can be changed into a prime (125311223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192462 + ... + 193111.

Almost surely, 2^125311225 is an apocalyptic number.

It is an amenable number.

125311225 is a deficient number, since it is larger than the sum of its proper divisors (42027891).

125311225 is a wasteful number, since it uses less digits than its factorization.

125311225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385596 (or 385591 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 125311225 is about 11194.2496398821. The cubic root of 125311225 is about 500.4146227476.

Adding to 125311225 its reverse (522113521), we get a palindrome (647424746).

The spelling of 125311225 in words is "one hundred twenty-five million, three hundred eleven thousand, two hundred twenty-five".