125243442254 has 16 divisors (see below), whose sum is σ = 216672799200. Its totient is φ = 53183322144.

The previous prime is 125243442251. The next prime is 125243442293. The reversal of 125243442254 is 452244342521.

It is a super-5 number, since 5×125243442254⁵ (a number of 57 digits) contains 55555 as substring.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41034989 + ... + 41038040.

It is an arithmetic number, because the mean of its divisors is an integer number (13542049950).

Almost surely, 2^125243442254 is an apocalyptic number.

125243442254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

125243442254 is a deficient number, since it is larger than the sum of its proper divisors (91429356946).

125243442254 is a wasteful number, since it uses less digits than its factorization.

125243442254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82073147.

The product of its digits is 307200, while the sum is 38.

Adding to 125243442254 its reverse (452244342521), we get a palindrome (577487784775).

The spelling of 125243442254 in words is "one hundred twenty-five billion, two hundred forty-three million, four hundred forty-two thousand, two hundred fifty-four".