125005807 has 4 divisors (see below), whose sum is σ = 131585080. Its totient is φ = 118426536.

The previous prime is 125005799. The next prime is 125005817. The reversal of 125005807 is 708500521.

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 125005807 - 2³ = 125005799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125005817) 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, 3289608 + ... + 3289645.

It is an arithmetic number, because the mean of its divisors is an integer number (32896270).

Almost surely, 2^125005807 is an apocalyptic number.

125005807 is a deficient number, since it is larger than the sum of its proper divisors (6579273).

125005807 is an equidigital number, since it uses as much as digits as its factorization.

125005807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6579272.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 125005807 is about 11180.5995814178. The cubic root of 125005807 is about 500.0077425468.

The spelling of 125005807 in words is "one hundred twenty-five million, five thousand, eight hundred seven".