55706291 has 2 divisors, whose sum is σ = 55706292. Its totient is φ = 55706290.

The previous prime is 55706267. The next prime is 55706317. The reversal of 55706291 is 19260755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55706291 - 2¹⁰ = 55705267 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55706251) 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, 27853145 + 27853146.

It is an arithmetic number, because the mean of its divisors is an integer number (27853146).

Almost surely, 2^55706291 is an apocalyptic number.

55706291 is a deficient number, since it is larger than the sum of its proper divisors (1).

55706291 is an equidigital number, since it uses as much as digits as its factorization.

55706291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 55706291 is about 7463.6647164781. The cubic root of 55706291 is about 381.9162005633.

The spelling of 55706291 in words is "fifty-five million, seven hundred six thousand, two hundred ninety-one".