125755573 has 2 divisors, whose sum is σ = 125755574. Its totient is φ = 125755572.

The previous prime is 125755537. The next prime is 125755577. The reversal of 125755573 is 375557521.

Together with previous prime (125755537) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119639844 + 6115729 = 10938^2 + 2473^2 .

It is an emirp because it is prime and its reverse (375557521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125755573 - 2²⁵ = 92201141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125755577) 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 as a sum of consecutive naturals, namely, 62877786 + 62877787.

It is an arithmetic number, because the mean of its divisors is an integer number (62877787).

Almost surely, 2^125755573 is an apocalyptic number.

It is an amenable number.

125755573 is a deficient number, since it is larger than the sum of its proper divisors (1).

125755573 is an equidigital number, since it uses as much as digits as its factorization.

125755573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 183750, while the sum is 40.

The square root of 125755573 is about 11214.0792310381. The cubic root of 125755573 is about 501.0054076226.

The spelling of 125755573 in words is "one hundred twenty-five million, seven hundred fifty-five thousand, five hundred seventy-three".