125623589 has 16 divisors (see below), whose sum is σ = 156360960. Its totient is φ = 98271360.

The previous prime is 125623577. The next prime is 125623601. The reversal of 125623589 is 985326521.

It is an interprime number because it is at equal distance from previous prime (125623577) and next prime (125623601).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125623589 is a prime.

It is a super-2 number, since 2×125623589² = 31562572226481842, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125623559) 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 in 15 ways as a sum of consecutive naturals, for example, 344 + ... + 15854.

It is an arithmetic number, because the mean of its divisors is an integer number (9772560).

Almost surely, 2^125623589 is an apocalyptic number.

It is an amenable number.

125623589 is a deficient number, since it is larger than the sum of its proper divisors (30737371).

125623589 is a wasteful number, since it uses less digits than its factorization.

125623589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15620.

The product of its digits is 129600, while the sum is 41.

The square root of 125623589 is about 11208.1929408803. The cubic root of 125623589 is about 500.8300731944.

The spelling of 125623589 in words is "one hundred twenty-five million, six hundred twenty-three thousand, five hundred eighty-nine".