125053543441 has 4 divisors (see below), whose sum is σ = 125383500400. Its totient is φ = 124723586484.

The previous prime is 125053543403. The next prime is 125053543499. The reversal of 125053543441 is 144345350521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 144345350521 = 114073 ⋅1265377.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125053543441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125053543441.

It is not an unprimeable number, because it can be changed into a prime (125053547441) 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 3 ways as a sum of consecutive naturals, for example, 164977911 + ... + 164978668.

It is an arithmetic number, because the mean of its divisors is an integer number (31345875100).

Almost surely, 2^125053543441 is an apocalyptic number.

It is an amenable number.

125053543441 is a deficient number, since it is larger than the sum of its proper divisors (329956959).

125053543441 is an equidigital number, since it uses as much as digits as its factorization.

125053543441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329956958.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 125053543441 its reverse (144345350521), we get a palindrome (269398893962).

The spelling of 125053543441 in words is "one hundred twenty-five billion, fifty-three million, five hundred forty-three thousand, four hundred forty-one".