125590529 has 2 divisors, whose sum is σ = 125590530. Its totient is φ = 125590528.

The previous prime is 125590519. The next prime is 125590541. The reversal of 125590529 is 925095521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87459904 + 38130625 = 9352^2 + 6175^2 .

It is a cyclic number.

It is not a de Polignac number, because 125590529 - 2²⁰ = 124541953 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 125590492 and 125590501.

It is not a weakly prime, because it can be changed into another prime (125590519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62795264 + 62795265.

It is an arithmetic number, because the mean of its divisors is an integer number (62795265).

Almost surely, 2^125590529 is an apocalyptic number.

It is an amenable number.

125590529 is a deficient number, since it is larger than the sum of its proper divisors (1).

125590529 is an equidigital number, since it uses as much as digits as its factorization.

125590529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 38.

The square root of 125590529 is about 11206.7180298248. The cubic root of 125590529 is about 500.7861353347.

The spelling of 125590529 in words is "one hundred twenty-five million, five hundred ninety thousand, five hundred twenty-nine".