55344409 has 2 divisors, whose sum is σ = 55344410. Its totient is φ = 55344408.

The previous prime is 55344407. The next prime is 55344437. The reversal of 55344409 is 90444355.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29811600 + 25532809 = 5460^2 + 5053^2 .

It is a cyclic number.

It is not a de Polignac number, because 55344409 - 2¹ = 55344407 is a prime.

Together with 55344407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55344407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27672204 + 27672205.

It is an arithmetic number, because the mean of its divisors is an integer number (27672205).

Almost surely, 2^55344409 is an apocalyptic number.

It is an amenable number.

55344409 is a deficient number, since it is larger than the sum of its proper divisors (1).

55344409 is an equidigital number, since it uses as much as digits as its factorization.

55344409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 55344409 is about 7439.3822996268. The cubic root of 55344409 is about 381.0873955335.

The spelling of 55344409 in words is "fifty-five million, three hundred forty-four thousand, four hundred nine".