55451843 has 2 divisors, whose sum is σ = 55451844. Its totient is φ = 55451842.

The previous prime is 55451819. The next prime is 55451911. The reversal of 55451843 is 34815455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55451843 - 2⁶ = 55451779 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55451743) 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, 27725921 + 27725922.

It is an arithmetic number, because the mean of its divisors is an integer number (27725922).

Almost surely, 2^55451843 is an apocalyptic number.

55451843 is a deficient number, since it is larger than the sum of its proper divisors (1).

55451843 is an equidigital number, since it uses as much as digits as its factorization.

55451843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48000, while the sum is 35.

The square root of 55451843 is about 7446.5994252410. The cubic root of 55451843 is about 381.3338237975. Note that the first 3 decimals are identical.

The spelling of 55451843 in words is "fifty-five million, four hundred fifty-one thousand, eight hundred forty-three".