55053123553 has 4 divisors (see below), whose sum is σ = 55134926788. Its totient is φ = 54971320320.

The previous prime is 55053123547. The next prime is 55053123569. The reversal of 55053123553 is 35532135055.

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 18169152849 + 36883970704 = 134793^2 + 192052^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55053123553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55053123053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40900608 + ... + 40901953.

It is an arithmetic number, because the mean of its divisors is an integer number (13783731697).

Almost surely, 2^55053123553 is an apocalyptic number.

It is an amenable number.

55053123553 is a deficient number, since it is larger than the sum of its proper divisors (81803235).

55053123553 is an equidigital number, since it uses as much as digits as its factorization.

55053123553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81803234.

The product of its (nonzero) digits is 168750, while the sum is 37.

The spelling of 55053123553 in words is "fifty-five billion, fifty-three million, one hundred twenty-three thousand, five hundred fifty-three".