55609343 has 2 divisors, whose sum is σ = 55609344. Its totient is φ = 55609342.

The previous prime is 55609303. The next prime is 55609373. The reversal of 55609343 is 34390655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55609343 - 2¹⁴ = 55592959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55609303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27804671 + 27804672.

It is an arithmetic number, because the mean of its divisors is an integer number (27804672).

Almost surely, 2^55609343 is an apocalyptic number.

55609343 is a deficient number, since it is larger than the sum of its proper divisors (1).

55609343 is an equidigital number, since it uses as much as digits as its factorization.

55609343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 35.

The square root of 55609343 is about 7457.1672235508. The cubic root of 55609343 is about 381.6945169721.

Adding to 55609343 its reverse (34390655), we get a palindrome (89999998).

The spelling of 55609343 in words is "fifty-five million, six hundred nine thousand, three hundred forty-three".