125566673 has 2 divisors, whose sum is σ = 125566674. Its totient is φ = 125566672.

The previous prime is 125566669. The next prime is 125566697. The reversal of 125566673 is 376665521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125260864 + 305809 = 11192^2 + 553^2 .

It is a cyclic number.

It is not a de Polignac number, because 125566673 - 2² = 125566669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125566673.

It is not a weakly prime, because it can be changed into another prime (125566663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62783336 + 62783337.

It is an arithmetic number, because the mean of its divisors is an integer number (62783337).

Almost surely, 2^125566673 is an apocalyptic number.

It is an amenable number.

125566673 is a deficient number, since it is larger than the sum of its proper divisors (1).

125566673 is an equidigital number, since it uses as much as digits as its factorization.

125566673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 41.

The square root of 125566673 is about 11205.6536177057. The cubic root of 125566673 is about 500.7544251130.

The spelling of 125566673 in words is "one hundred twenty-five million, five hundred sixty-six thousand, six hundred seventy-three".