55615027845 has 24 divisors (see below), whose sum is σ = 96355508256. Its totient is φ = 27379704768.

The previous prime is 55615027843. The next prime is 55615027877. The reversal of 55615027845 is 54872051655.

It is not a de Polignac number, because 55615027845 - 2¹ = 55615027843 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55615027794 and 55615027803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55615027843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10966899 + ... + 10971968.

It is an arithmetic number, because the mean of its divisors is an integer number (4014812844).

Almost surely, 2^55615027845 is an apocalyptic number.

It is an amenable number.

55615027845 is a deficient number, since it is larger than the sum of its proper divisors (40740480411).

55615027845 is a wasteful number, since it uses less digits than its factorization.

55615027845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21938901 (or 21938888 counting only the distinct ones).

The product of its (nonzero) digits is 1680000, while the sum is 48.

The spelling of 55615027845 in words is "fifty-five billion, six hundred fifteen million, twenty-seven thousand, eight hundred forty-five".