125544025 has 12 divisors (see below), whose sum is σ = 156131500. Its totient is φ = 100140480.

The previous prime is 125544019. The next prime is 125544049. The reversal of 125544025 is 520445521.

It can be written as a sum of positive squares in 6 ways, for example, as 2178576 + 123365449 = 1476^2 + 11107^2 .

It is not a de Polignac number, because 125544025 - 2⁵ = 125543993 is a prime.

It is a super-2 number, since 2×125544025² = 31522604426401250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125543984 and 125544002.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1531 + ... + 15919.

Almost surely, 2^125544025 is an apocalyptic number.

It is an amenable number.

125544025 is a deficient number, since it is larger than the sum of its proper divisors (30587475).

125544025 is a wasteful number, since it uses less digits than its factorization.

125544025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14748 (or 14743 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 125544025 is about 11204.6430108237. The cubic root of 125544025 is about 500.7243168901.

Adding to 125544025 its product of nonzero digits (8000), we get a square (125552025 = 11205²).

Adding to 125544025 its reverse (520445521), we get a palindrome (645989546).

The spelling of 125544025 in words is "one hundred twenty-five million, five hundred forty-four thousand, twenty-five".