55404400316549 has 32 divisors (see below), whose sum is σ = 57294130118400. Its totient is φ = 53542823938560.

The previous prime is 55404400316543. The next prime is 55404400316569. The reversal of 55404400316549 is 94561300440455.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55404400316549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55404400316497 and 55404400316506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55404400316543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3014540042 + ... + 3014558420.

It is an arithmetic number, because the mean of its divisors is an integer number (1790441566200).

Almost surely, 2^{55404400316549} is an apocalyptic number.

It is an amenable number.

55404400316549 is a deficient number, since it is larger than the sum of its proper divisors (1889729801851).

55404400316549 is a wasteful number, since it uses less digits than its factorization.

55404400316549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20093.

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 55404400316549 in words is "fifty-five trillion, four hundred four billion, four hundred million, three hundred sixteen thousand, five hundred forty-nine".