55050505553 has 2 divisors, whose sum is σ = 55050505554. Its totient is φ = 55050505552.

The previous prime is 55050505511. The next prime is 55050505621. The reversal of 55050505553 is 35550505055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49741488784 + 5309016769 = 223028^2 + 72863^2 .

It is a cyclic number.

It is not a de Polignac number, because 55050505553 - 2⁸ = 55050505297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (55050505453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27525252776 + 27525252777.

It is an arithmetic number, because the mean of its divisors is an integer number (27525252777).

Almost surely, 2^55050505553 is an apocalyptic number.

It is an amenable number.

55050505553 is a deficient number, since it is larger than the sum of its proper divisors (1).

55050505553 is an equidigital number, since it uses as much as digits as its factorization.

55050505553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 234375, while the sum is 38.

The spelling of 55050505553 in words is "fifty-five billion, fifty million, five hundred five thousand, five hundred fifty-three".