55550266061 has 2 divisors, whose sum is σ = 55550266062. Its totient is φ = 55550266060.

The previous prime is 55550266027. The next prime is 55550266067. The reversal of 55550266061 is 16066205555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47581133161 + 7969132900 = 218131^2 + 89270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55550266061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55550266067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27775133030 + 27775133031.

It is an arithmetic number, because the mean of its divisors is an integer number (27775133031).

Almost surely, 2^55550266061 is an apocalyptic number.

It is an amenable number.

55550266061 is a deficient number, since it is larger than the sum of its proper divisors (1).

55550266061 is an equidigital number, since it uses as much as digits as its factorization.

55550266061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 55550266061 in words is "fifty-five billion, five hundred fifty million, two hundred sixty-six thousand, sixty-one".