125243442256 has 20 divisors (see below), whose sum is σ = 248302407232. Its totient is φ = 61165401696.

The previous prime is 125243442251. The next prime is 125243442293. The reversal of 125243442256 is 652244342521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125243442251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91019256 + ... + 91020631.

Almost surely, 2^125243442256 is an apocalyptic number.

125243442256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125243442256 is a deficient number, since it is larger than the sum of its proper divisors (123058964976).

125243442256 is a wasteful number, since it uses less digits than its factorization.

125243442256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182039938 (or 182039932 counting only the distinct ones).

The product of its digits is 460800, while the sum is 40.

Adding to 125243442256 its reverse (652244342521), we get a palindrome (777487784777).

The spelling of 125243442256 in words is "one hundred twenty-five billion, two hundred forty-three million, four hundred forty-two thousand, two hundred fifty-six".