55668311 has 2 divisors, whose sum is σ = 55668312. Its totient is φ = 55668310.

The previous prime is 55668299. The next prime is 55668373. The reversal of 55668311 is 11386655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55668311 - 2¹⁸ = 55406167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55668511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27834155 + 27834156.

It is an arithmetic number, because the mean of its divisors is an integer number (27834156).

Almost surely, 2^55668311 is an apocalyptic number.

55668311 is a deficient number, since it is larger than the sum of its proper divisors (1).

55668311 is an equidigital number, since it uses as much as digits as its factorization.

55668311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 35.

The square root of 55668311 is about 7461.1199561460. The cubic root of 55668311 is about 381.8293852636.

The spelling of 55668311 in words is "fifty-five million, six hundred sixty-eight thousand, three hundred eleven".