55345705553 has 2 divisors, whose sum is σ = 55345705554. Its totient is φ = 55345705552.

The previous prime is 55345705517. The next prime is 55345705567. The reversal of 55345705553 is 35550754355.

55345705553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55214190529 + 131515024 = 234977^2 + 11468^2 .

It is a cyclic number.

It is not a de Polignac number, because 55345705553 - 2¹⁰ = 55345704529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55345705498 and 55345705507.

It is not a weakly prime, because it can be changed into another prime (55345705573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27672852776 + 27672852777.

It is an arithmetic number, because the mean of its divisors is an integer number (27672852777).

Almost surely, 2^55345705553 is an apocalyptic number.

It is an amenable number.

55345705553 is a deficient number, since it is larger than the sum of its proper divisors (1).

55345705553 is an equidigital number, since it uses as much as digits as its factorization.

55345705553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3937500, while the sum is 47.

The spelling of 55345705553 in words is "fifty-five billion, three hundred forty-five million, seven hundred five thousand, five hundred fifty-three".