55332559 has 2 divisors, whose sum is σ = 55332560. Its totient is φ = 55332558.

The previous prime is 55332539. The next prime is 55332577. The reversal of 55332559 is 95523355.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55332559 - 2¹⁵ = 55299791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55332539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27666279 + 27666280.

It is an arithmetic number, because the mean of its divisors is an integer number (27666280).

Almost surely, 2^55332559 is an apocalyptic number.

55332559 is a deficient number, since it is larger than the sum of its proper divisors (1).

55332559 is an equidigital number, since it uses as much as digits as its factorization.

55332559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 101250, while the sum is 37.

The square root of 55332559 is about 7438.5858198988. The cubic root of 55332559 is about 381.0601949059.

The spelling of 55332559 in words is "fifty-five million, three hundred thirty-two thousand, five hundred fifty-nine".