125805059 has 4 divisors (see below), whose sum is σ = 126331680. Its totient is φ = 125278440.

The previous prime is 125805019. The next prime is 125805079. The reversal of 125805059 is 950508521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 950508521 = 1061 ⋅895861.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125805059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125805019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262952 + ... + 263429.

It is an arithmetic number, because the mean of its divisors is an integer number (31582920).

Almost surely, 2^125805059 is an apocalyptic number.

125805059 is a deficient number, since it is larger than the sum of its proper divisors (526621).

125805059 is an equidigital number, since it uses as much as digits as its factorization.

125805059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526620.

The product of its (nonzero) digits is 18000, while the sum is 35.

The square root of 125805059 is about 11216.2854368102. The cubic root of 125805059 is about 501.0711157835.

The spelling of 125805059 in words is "one hundred twenty-five million, eight hundred five thousand, fifty-nine".