125255807 has 4 divisors (see below), whose sum is σ = 126096600. Its totient is φ = 124415016.

The previous prime is 125255791. The next prime is 125255831. The reversal of 125255807 is 708552521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708552521 = 1231 ⋅575591.

It is a cyclic number.

It is not a de Polignac number, because 125255807 - 2⁴ = 125255791 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 (125255707) 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, 420173 + ... + 420470.

It is an arithmetic number, because the mean of its divisors is an integer number (31524150).

Almost surely, 2^125255807 is an apocalyptic number.

125255807 is a deficient number, since it is larger than the sum of its proper divisors (840793).

125255807 is an equidigital number, since it uses as much as digits as its factorization.

125255807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840792.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 125255807 is about 11191.7740774195. The cubic root of 125255807 is about 500.3408435985.

The spelling of 125255807 in words is "one hundred twenty-five million, two hundred fifty-five thousand, eight hundred seven".