55115584457142 has 16 divisors (see below), whose sum is σ = 120252184270272. Its totient is φ = 16701692259720.

The previous prime is 55115584457009. The next prime is 55115584457149. The reversal of 55115584457142 is 24175448551155.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55115584457149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417542306428 + ... + 417542306559.

It is an arithmetic number, because the mean of its divisors is an integer number (7515761516892).

Almost surely, 2^{55115584457142} is an apocalyptic number.

55115584457142 is an abundant number, since it is smaller than the sum of its proper divisors (65136599813130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55115584457142 is a wasteful number, since it uses less digits than its factorization.

55115584457142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835084613003.

The product of its digits is 22400000, while the sum is 57.

The spelling of 55115584457142 in words is "fifty-five trillion, one hundred fifteen billion, five hundred eighty-four million, four hundred fifty-seven thousand, one hundred forty-two".