125057779 has 16 divisors (see below), whose sum is σ = 156347136. Its totient is φ = 97178400.

The previous prime is 125057719. The next prime is 125057809. The reversal of 125057779 is 977750521.

It is not a de Polignac number, because 125057779 - 2⁷ = 125057651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125057719) 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 15 ways as a sum of consecutive naturals, for example, 28524 + ... + 32614.

It is an arithmetic number, because the mean of its divisors is an integer number (9771696).

Almost surely, 2^125057779 is an apocalyptic number.

125057779 is a deficient number, since it is larger than the sum of its proper divisors (31289357).

125057779 is a wasteful number, since it uses less digits than its factorization.

125057779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4506.

The product of its (nonzero) digits is 154350, while the sum is 43.

The square root of 125057779 is about 11182.9235444047. The cubic root of 125057779 is about 500.0770267998.

The spelling of 125057779 in words is "one hundred twenty-five million, fifty-seven thousand, seven hundred seventy-nine".