55055550049 has 2 divisors, whose sum is σ = 55055550050. Its totient is φ = 55055550048.

The previous prime is 55055550031. The next prime is 55055550059. The reversal of 55055550049 is 94005555055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54099503649 + 956046400 = 232593^2 + 30920^2 .

It is a cyclic number.

It is not a de Polignac number, because 55055550049 - 2⁷ = 55055549921 is a prime.

It is a super-2 number, since 2×55055550049² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55055549987 and 55055550014.

It is not a weakly prime, because it can be changed into another prime (55055550019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27527775024 + 27527775025.

It is an arithmetic number, because the mean of its divisors is an integer number (27527775025).

Almost surely, 2^55055550049 is an apocalyptic number.

It is an amenable number.

55055550049 is a deficient number, since it is larger than the sum of its proper divisors (1).

55055550049 is an equidigital number, since it uses as much as digits as its factorization.

55055550049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 55055550049 in words is "fifty-five billion, fifty-five million, five hundred fifty thousand, forty-nine".