55447422474455 has 16 divisors (see below), whose sum is σ = 72587396813184. Its totient is φ = 40324464763680.

The previous prime is 55447422474413. The next prime is 55447422474487.

It is a happy number.

55447422474455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55447422474455 - 2¹² = 55447422470359 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9265289 + ... + 14026418.

It is an arithmetic number, because the mean of its divisors is an integer number (4536712300824).

Almost surely, 2^{55447422474455} is an apocalyptic number.

55447422474455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55447422474455 is a deficient number, since it is larger than the sum of its proper divisors (17139974338729).

55447422474455 is a wasteful number, since it uses less digits than its factorization.

55447422474455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23335006.

The product of its digits is 501760000, while the sum is 62.

The spelling of 55447422474455 in words is "fifty-five trillion, four hundred forty-seven billion, four hundred twenty-two million, four hundred seventy-four thousand, four hundred fifty-five".