125528559 has 16 divisors (see below), whose sum is σ = 186463200. Its totient is φ = 74583936.

The previous prime is 125528521. The next prime is 125528563. The reversal of 125528559 is 955825521.

It is not a de Polignac number, because 125528559 - 2⁹ = 125528047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125528559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125528509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54364 + ... + 56625.

It is an arithmetic number, because the mean of its divisors is an integer number (11653950).

Almost surely, 2^125528559 is an apocalyptic number.

125528559 is a deficient number, since it is larger than the sum of its proper divisors (60934641).

125528559 is a wasteful number, since it uses less digits than its factorization.

125528559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111034.

The product of its digits is 180000, while the sum is 42.

The square root of 125528559 is about 11203.9528292474. The cubic root of 125528559 is about 500.7037543283.

The spelling of 125528559 in words is "one hundred twenty-five million, five hundred twenty-eight thousand, five hundred fifty-nine".