55300261 has 2 divisors, whose sum is σ = 55300262. Its totient is φ = 55300260.

The previous prime is 55300243. The next prime is 55300283. The reversal of 55300261 is 16200355.

It is a happy number.

55300261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (55300283) can be obtained adding 55300261 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36072036 + 19228225 = 6006^2 + 4385^2 .

It is a cyclic number.

It is not a de Polignac number, because 55300261 - 2⁵ = 55300229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55300291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27650130 + 27650131.

It is an arithmetic number, because the mean of its divisors is an integer number (27650131).

Almost surely, 2^55300261 is an apocalyptic number.

It is an amenable number.

55300261 is a deficient number, since it is larger than the sum of its proper divisors (1).

55300261 is an equidigital number, since it uses as much as digits as its factorization.

55300261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 55300261 is about 7436.4145258317. The cubic root of 55300261 is about 380.9860379790.

The spelling of 55300261 in words is "fifty-five million, three hundred thousand, two hundred sixty-one".