125594563 has 4 divisors (see below), whose sum is σ = 129925440. Its totient is φ = 121263688.

The previous prime is 125594549. The next prime is 125594591. The reversal of 125594563 is 365495521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365495521 = 2063 ⋅177167.

It is a cyclic number.

It is not a de Polignac number, because 125594563 - 2⁵ = 125594531 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125594263) 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, 2165395 + ... + 2165452.

It is an arithmetic number, because the mean of its divisors is an integer number (32481360).

Almost surely, 2^125594563 is an apocalyptic number.

125594563 is a deficient number, since it is larger than the sum of its proper divisors (4330877).

125594563 is an equidigital number, since it uses as much as digits as its factorization.

125594563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4330876.

The product of its digits is 162000, while the sum is 40.

The square root of 125594563 is about 11206.8980097081. The cubic root of 125594563 is about 500.7914970703.

The spelling of 125594563 in words is "one hundred twenty-five million, five hundred ninety-four thousand, five hundred sixty-three".