55144121653 has 2 divisors, whose sum is σ = 55144121654. Its totient is φ = 55144121652.

The previous prime is 55144121651. The next prime is 55144121663. The reversal of 55144121653 is 35612144155.

55144121653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44265214449 + 10878907204 = 210393^2 + 104302^2 .

It is a cyclic number.

It is not a de Polignac number, because 55144121653 - 2¹ = 55144121651 is a prime.

Together with 55144121651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55144121651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27572060826 + 27572060827.

It is an arithmetic number, because the mean of its divisors is an integer number (27572060827).

Almost surely, 2^55144121653 is an apocalyptic number.

It is an amenable number.

55144121653 is a deficient number, since it is larger than the sum of its proper divisors (1).

55144121653 is an equidigital number, since it uses as much as digits as its factorization.

55144121653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72000, while the sum is 37.

The spelling of 55144121653 in words is "fifty-five billion, one hundred forty-four million, one hundred twenty-one thousand, six hundred fifty-three".