54551515673 has 4 divisors (see below), whose sum is σ = 54552523620. Its totient is φ = 54550507728.

The previous prime is 54551515661. The next prime is 54551515727. The reversal of 54551515673 is 37651515545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32240716249 + 22310799424 = 179557^2 + 149368^2 .

It is a cyclic number.

It is not a de Polignac number, because 54551515673 - 2¹⁶ = 54551450137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54551515873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417890 + ... + 532667.

It is an arithmetic number, because the mean of its divisors is an integer number (13638130905).

Almost surely, 2^54551515673 is an apocalyptic number.

It is an amenable number.

54551515673 is a deficient number, since it is larger than the sum of its proper divisors (1007947).

54551515673 is an equidigital number, since it uses as much as digits as its factorization.

54551515673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007946.

The product of its digits is 1575000, while the sum is 47.

The spelling of 54551515673 in words is "fifty-four billion, five hundred fifty-one million, five hundred fifteen thousand, six hundred seventy-three".