555555055553 has 2 divisors, whose sum is σ = 555555055554. Its totient is φ = 555555055552.

The previous prime is 555555055541. The next prime is 555555055619. The reversal of 555555055553 is 355550555555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 555245541904 + 309513649 = 745148^2 + 17593^2 .

It is a cyclic number.

It is not a de Polignac number, because 555555055553 - 2²⁰ = 555554006977 is a prime.

It is a super-2 number, since 2×555555055553² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 555555055495 and 555555055504.

It is not a weakly prime, because it can be changed into another prime (555555051553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277777527776 + 277777527777.

It is an arithmetic number, because the mean of its divisors is an integer number (277777527777).

Almost surely, 2^555555055553 is an apocalyptic number.

It is an amenable number.

555555055553 is a deficient number, since it is larger than the sum of its proper divisors (1).

555555055553 is an equidigital number, since it uses as much as digits as its factorization.

555555055553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29296875, while the sum is 53.

The spelling of 555555055553 in words is "five hundred fifty-five billion, five hundred fifty-five million, fifty-five thousand, five hundred fifty-three".