125604663 has 4 divisors (see below), whose sum is σ = 167472888. Its totient is φ = 83736440.

The previous prime is 125604629. The next prime is 125604671. The reversal of 125604663 is 366406521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125604663 - 2⁹ = 125604151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125604683) 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 3 ways as a sum of consecutive naturals, for example, 20934108 + ... + 20934113.

It is an arithmetic number, because the mean of its divisors is an integer number (41868222).

Almost surely, 2^125604663 is an apocalyptic number.

125604663 is a deficient number, since it is larger than the sum of its proper divisors (41868225).

125604663 is an equidigital number, since it uses as much as digits as its factorization.

125604663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41868224.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 125604663 is about 11207.3486159751. The cubic root of 125604663 is about 500.8049208429.

The spelling of 125604663 in words is "one hundred twenty-five million, six hundred four thousand, six hundred sixty-three".