125866057 has 8 divisors (see below), whose sum is σ = 128177280. Its totient is φ = 123560880.

The previous prime is 125866049. The next prime is 125866093. The reversal of 125866057 is 750668521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125866057 - 2³ = 125866049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125866357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71763 + ... + 73495.

It is an arithmetic number, because the mean of its divisors is an integer number (16022160).

Almost surely, 2^125866057 is an apocalyptic number.

It is an amenable number.

125866057 is a deficient number, since it is larger than the sum of its proper divisors (2311223).

125866057 is a wasteful number, since it uses less digits than its factorization.

125866057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3023.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 125866057 is about 11219.0042784554. The cubic root of 125866057 is about 501.1520860234.

The spelling of 125866057 in words is "one hundred twenty-five million, eight hundred sixty-six thousand, fifty-seven".