125522 has 4 divisors (see below), whose sum is σ = 188286. Its totient is φ = 62760.

The previous prime is 125509. The next prime is 125527. The reversal of 125522 is 225521.

125522 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225521 = 109 ⋅2069.

It can be written as a sum of positive squares in only one way, i.e., 121801 + 3721 = 349^2 + 61^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 125522.

It is not an unprimeable number, because it can be changed into a prime (125527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31379 + ... + 31382.

2¹²⁵⁵²² is an apocalyptic number.

125522 is a deficient number, since it is larger than the sum of its proper divisors (62764).

125522 is an equidigital number, since it uses as much as digits as its factorization.

125522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62763.

The product of its digits is 200, while the sum is 17.

The square root of 125522 is about 354.2908409767. The cubic root of 125522 is about 50.0695033409.

Subtracting 125522 from its reverse (225521), we obtain a palindrome (99999).

The spelling of 125522 in words is "one hundred twenty-five thousand, five hundred twenty-two".