125506211 has 2 divisors, whose sum is σ = 125506212. Its totient is φ = 125506210.

The previous prime is 125506181. The next prime is 125506237. The reversal of 125506211 is 112605521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125506211 - 2¹⁰ = 125505187 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125506261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62753105 + 62753106.

It is an arithmetic number, because the mean of its divisors is an integer number (62753106).

Almost surely, 2^125506211 is an apocalyptic number.

125506211 is a deficient number, since it is larger than the sum of its proper divisors (1).

125506211 is an equidigital number, since it uses as much as digits as its factorization.

125506211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 125506211 is about 11202.9554582708. The cubic root of 125506211 is about 500.6740389347.

The spelling of 125506211 in words is "one hundred twenty-five million, five hundred six thousand, two hundred eleven".