55385537072 has 20 divisors (see below), whose sum is σ = 107408232576. Its totient is φ = 27667283520.

The previous prime is 55385537071. The next prime is 55385537147. The reversal of 55385537072 is 27073558355.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 55385537072.

It is not an unprimeable number, because it can be changed into a prime (55385537071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1574879 + ... + 1609662.

Almost surely, 2^55385537072 is an apocalyptic number.

It is an amenable number.

55385537072 is a deficient number, since it is larger than the sum of its proper divisors (52022695504).

55385537072 is a wasteful number, since it uses less digits than its factorization.

55385537072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185636 (or 3185630 counting only the distinct ones).

The product of its (nonzero) digits is 4410000, while the sum is 50.

The spelling of 55385537072 in words is "fifty-five billion, three hundred eighty-five million, five hundred thirty-seven thousand, seventy-two".