55542744724555 has 32 divisors (see below), whose sum is σ = 76995548982720. Its totient is φ = 38014633144320.

The previous prime is 55542744724553. The next prime is 55542744724559.

It is a happy number.

55542744724555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55542744724555 - 2¹ = 55542744724553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55542744724553) 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 31 ways as a sum of consecutive naturals, for example, 5993677 + ... + 12124753.

It is an arithmetic number, because the mean of its divisors is an integer number (2406110905710).

Almost surely, 2^{55542744724555} is an apocalyptic number.

55542744724555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55542744724555 is a deficient number, since it is larger than the sum of its proper divisors (21452804258165).

55542744724555 is a wasteful number, since it uses less digits than its factorization.

55542744724555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6140799.

The product of its digits is 784000000, while the sum is 64.

The spelling of 55542744724555 in words is "fifty-five trillion, five hundred forty-two billion, seven hundred forty-four million, seven hundred twenty-four thousand, five hundred fifty-five".