55258319388 has 24 divisors (see below), whose sum is σ = 130077109008. Its totient is φ = 18256435456.

The previous prime is 55258319387. The next prime is 55258319393. The reversal of 55258319388 is 88391385255.

55258319388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55258319387) 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, 20374131 + ... + 20376842.

It is an arithmetic number, because the mean of its divisors is an integer number (5419879542).

Almost surely, 2^55258319388 is an apocalyptic number.

It is an amenable number.

55258319388 is an abundant number, since it is smaller than the sum of its proper divisors (74818789620).

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

55258319388 is a wasteful number, since it uses less digits than its factorization.

55258319388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40751093 (or 40751091 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 57.

The spelling of 55258319388 in words is "fifty-five billion, two hundred fifty-eight million, three hundred nineteen thousand, three hundred eighty-eight".