125642611055 has 8 divisors (see below), whose sum is σ = 162368912832. Its totient is φ = 92782235808.

The previous prime is 125642610971. The next prime is 125642611067. The reversal of 125642611055 is 550116246521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125642611055 - 2⁸ = 125642610799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966481559 + ... + 966481688.

It is an arithmetic number, because the mean of its divisors is an integer number (20296114104).

Almost surely, 2^125642611055 is an apocalyptic number.

125642611055 is a deficient number, since it is larger than the sum of its proper divisors (36726301777).

125642611055 is a wasteful number, since it uses less digits than its factorization.

125642611055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932963265.

The product of its (nonzero) digits is 72000, while the sum is 38.

Adding to 125642611055 its reverse (550116246521), we get a palindrome (675758857576).

The spelling of 125642611055 in words is "one hundred twenty-five billion, six hundred forty-two million, six hundred eleven thousand, fifty-five".