125525219 has 2 divisors, whose sum is σ = 125525220. Its totient is φ = 125525218.

The previous prime is 125525189. The next prime is 125525261. The reversal of 125525219 is 912525521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125525219 - 2¹⁶ = 125459683 is a prime.

It is a super-2 number, since 2×125525219² = 31513161209995922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125525819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62762609 + 62762610.

It is an arithmetic number, because the mean of its divisors is an integer number (62762610).

Almost surely, 2^125525219 is an apocalyptic number.

125525219 is a deficient number, since it is larger than the sum of its proper divisors (1).

125525219 is an equidigital number, since it uses as much as digits as its factorization.

125525219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 32.

The square root of 125525219 is about 11203.8037737190. The cubic root of 125525219 is about 500.6993134654.

It can be divided in two parts, 12552 and 5219, that added together give a palindrome (17771).

The spelling of 125525219 in words is "one hundred twenty-five million, five hundred twenty-five thousand, two hundred nineteen".