125586217 has 2 divisors, whose sum is σ = 125586218. Its totient is φ = 125586216.

The previous prime is 125586199. The next prime is 125586271. The reversal of 125586217 is 712685521.

Together with next prime (125586271) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93141801 + 32444416 = 9651^2 + 5696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125586217 is a prime.

It is not a weakly prime, because it can be changed into another prime (125586287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62793108 + 62793109.

It is an arithmetic number, because the mean of its divisors is an integer number (62793109).

Almost surely, 2^125586217 is an apocalyptic number.

It is an amenable number.

125586217 is a deficient number, since it is larger than the sum of its proper divisors (1).

125586217 is an equidigital number, since it uses as much as digits as its factorization.

125586217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 37.

The square root of 125586217 is about 11206.5256435704. The cubic root of 125586217 is about 500.7804039722.

The spelling of 125586217 in words is "one hundred twenty-five million, five hundred eighty-six thousand, two hundred seventeen".