55578947369 has 8 divisors (see below), whose sum is σ = 60647216160. Its totient is φ = 50513284800.

The previous prime is 55578947357. The next prime is 55578947377. The reversal of 55578947369 is 96374987555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55578947369 - 2²⁸ = 55310511913 is a prime.

It is a super-3 number, since 3×55578947369³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55578947299 and 55578947308.

It is not an unprimeable number, because it can be changed into a prime (55578947329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606827 + ... + 692384.

It is an arithmetic number, because the mean of its divisors is an integer number (7580902020).

Almost surely, 2^55578947369 is an apocalyptic number.

It is an amenable number.

55578947369 is a deficient number, since it is larger than the sum of its proper divisors (5068268791).

55578947369 is a wasteful number, since it uses less digits than its factorization.

55578947369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303111.

The product of its digits is 285768000, while the sum is 68.

The spelling of 55578947369 in words is "fifty-five billion, five hundred seventy-eight million, nine hundred forty-seven thousand, three hundred sixty-nine".