55120655140 has 24 divisors (see below), whose sum is σ = 115767731520. Its totient is φ = 22045527648.

The previous prime is 55120655137. The next prime is 55120655141. The reversal of 55120655140 is 4155602155.

55120655140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55120655096 and 55120655105.

It is not an unprimeable number, because it can be changed into a prime (55120655141) 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, 1510 + ... + 332029.

It is an arithmetic number, because the mean of its divisors is an integer number (4823655480).

Almost surely, 2^55120655140 is an apocalyptic number.

It is an amenable number.

55120655140 is an abundant number, since it is smaller than the sum of its proper divisors (60647076380).

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

55120655140 is a wasteful number, since it uses less digits than its factorization.

55120655140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341811 (or 341809 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 55120655140 in words is "fifty-five billion, one hundred twenty million, six hundred fifty-five thousand, one hundred forty".