55125925138 has 8 divisors (see below), whose sum is σ = 82693856880. Its totient is φ = 27561306180.

The previous prime is 55125925123. The next prime is 55125925147. The reversal of 55125925138 is 83152952155.

55125925138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786168 + ... + 853411.

It is an arithmetic number, because the mean of its divisors is an integer number (10336732110).

Almost surely, 2^55125925138 is an apocalyptic number.

55125925138 is a deficient number, since it is larger than the sum of its proper divisors (27567931742).

55125925138 is a wasteful number, since it uses less digits than its factorization.

55125925138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656392.

The product of its digits is 540000, while the sum is 46.

The spelling of 55125925138 in words is "fifty-five billion, one hundred twenty-five million, nine hundred twenty-five thousand, one hundred thirty-eight".