55344691 has 2 divisors, whose sum is σ = 55344692. Its totient is φ = 55344690.

The previous prime is 55344689. The next prime is 55344697. The reversal of 55344691 is 19644355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55344691 - 2¹ = 55344689 is a prime.

Together with 55344689, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55344691.

It is not a weakly prime, because it can be changed into another prime (55344697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27672345 + 27672346.

It is an arithmetic number, because the mean of its divisors is an integer number (27672346).

Almost surely, 2^55344691 is an apocalyptic number.

55344691 is a deficient number, since it is larger than the sum of its proper divisors (1).

55344691 is an equidigital number, since it uses as much as digits as its factorization.

55344691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

The square root of 55344691 is about 7439.4012527891. The cubic root of 55344691 is about 381.0880427923.

The spelling of 55344691 in words is "fifty-five million, three hundred forty-four thousand, six hundred ninety-one".