125326557 has 12 divisors (see below), whose sum is σ = 182820924. Its totient is φ = 82723200.

The previous prime is 125326549. The next prime is 125326571. The reversal of 125326557 is 755623521.

125326557 is a `hidden beast` number, since 12 + 532 + 65 + 57 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52838361 + 72488196 = 7269^2 + 8514^2 .

It is not a de Polignac number, because 125326557 - 2³ = 125326549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125326577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68028 + ... + 69845.

It is an arithmetic number, because the mean of its divisors is an integer number (15235077).

Almost surely, 2^125326557 is an apocalyptic number.

It is an amenable number.

125326557 is a deficient number, since it is larger than the sum of its proper divisors (57494367).

125326557 is a wasteful number, since it uses less digits than its factorization.

125326557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137980 (or 137977 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 125326557 is about 11194.9344348236. The cubic root of 125326557 is about 500.4350307201.

The spelling of 125326557 in words is "one hundred twenty-five million, three hundred twenty-six thousand, five hundred fifty-seven".