55530380368 has 20 divisors (see below), whose sum is σ = 107593797460. Its totient is φ = 27764239104.

The previous prime is 55530380359. The next prime is 55530380369. The reversal of 55530380368 is 86308303555.

It can be written as a sum of positive squares in 2 ways, for example, as 23693829184 + 31836551184 = 153928^2 + 178428^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55530380369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790588 + ... + 857956.

It is an arithmetic number, because the mean of its divisors is an integer number (5379689873).

Almost surely, 2^55530380368 is an apocalyptic number.

It is an amenable number.

55530380368 is a deficient number, since it is larger than the sum of its proper divisors (52063417092).

55530380368 is a wasteful number, since it uses less digits than its factorization.

55530380368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118894 (or 118888 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 55530380368 in words is "fifty-five billion, five hundred thirty million, three hundred eighty thousand, three hundred sixty-eight".