55344407 has 2 divisors, whose sum is σ = 55344408. Its totient is φ = 55344406.

The previous prime is 55344389. The next prime is 55344409. The reversal of 55344407 is 70444355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55344407 - 2⁶ = 55344343 is a prime.

Together with 55344409, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55344409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27672203 + 27672204.

It is an arithmetic number, because the mean of its divisors is an integer number (27672204).

Almost surely, 2^55344407 is an apocalyptic number.

55344407 is a deficient number, since it is larger than the sum of its proper divisors (1).

55344407 is an equidigital number, since it uses as much as digits as its factorization.

55344407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 55344407 is about 7439.3821652070. The cubic root of 55344407 is about 381.0873909430.

The spelling of 55344407 in words is "fifty-five million, three hundred forty-four thousand, four hundred seven".