55444867 has 2 divisors, whose sum is σ = 55444868. Its totient is φ = 55444866.

The previous prime is 55444841. The next prime is 55444891. The reversal of 55444867 is 76844455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55444867 - 2¹¹ = 55442819 is a prime.

It is not a weakly prime, because it can be changed into another prime (55444567) 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, 27722433 + 27722434.

It is an arithmetic number, because the mean of its divisors is an integer number (27722434).

Almost surely, 2^55444867 is an apocalyptic number.

55444867 is a deficient number, since it is larger than the sum of its proper divisors (1).

55444867 is an equidigital number, since it uses as much as digits as its factorization.

55444867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 537600, while the sum is 43.

The square root of 55444867 is about 7446.1310087857. The cubic root of 55444867 is about 381.3178321660.

The spelling of 55444867 in words is "fifty-five million, four hundred forty-four thousand, eight hundred sixty-seven".