55404400316545 has 16 divisors (see below), whose sum is σ = 75991331600640. Its totient is φ = 37987511776704.

The previous prime is 55404400316543. The next prime is 55404400316569. The reversal of 55404400316545 is 54561300440455.

It is not a de Polignac number, because 55404400316545 - 2¹ = 55404400316543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55404400316495 and 55404400316504.

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 15 ways as a sum of consecutive naturals, for example, 84606922 + ... + 85259251.

It is an arithmetic number, because the mean of its divisors is an integer number (4749458225040).

Almost surely, 2^{55404400316545} is an apocalyptic number.

It is an amenable number.

55404400316545 is a deficient number, since it is larger than the sum of its proper divisors (20586931284095).

55404400316545 is a wasteful number, since it uses less digits than its factorization.

55404400316545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169875504.

The product of its (nonzero) digits is 2880000, while the sum is 46.

The spelling of 55404400316545 in words is "fifty-five trillion, four hundred four billion, four hundred million, three hundred sixteen thousand, five hundred forty-five".