55346281 has 2 divisors, whose sum is σ = 55346282. Its totient is φ = 55346280.

The previous prime is 55346279. The next prime is 55346299. The reversal of 55346281 is 18264355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33640000 + 21706281 = 5800^2 + 4659^2 .

It is a cyclic number.

It is not a de Polignac number, because 55346281 - 2¹ = 55346279 is a prime.

It is a super-2 number, since 2×55346281² = 6126421641061922, which contains 22 as substring.

Together with 55346279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55346231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27673140 + 27673141.

It is an arithmetic number, because the mean of its divisors is an integer number (27673141).

Almost surely, 2^55346281 is an apocalyptic number.

It is an amenable number.

55346281 is a deficient number, since it is larger than the sum of its proper divisors (1).

55346281 is an equidigital number, since it uses as much as digits as its factorization.

55346281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 34.

The square root of 55346281 is about 7439.5081154603. The cubic root of 55346281 is about 381.0916921889.

The spelling of 55346281 in words is "fifty-five million, three hundred forty-six thousand, two hundred eighty-one".