55560443 has 2 divisors, whose sum is σ = 55560444. Its totient is φ = 55560442.

The previous prime is 55560419. The next prime is 55560457. The reversal of 55560443 is 34406555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55560443 - 2⁸ = 55560187 is a prime.

It is a super-4 number, since 4×55560443⁴ (a number of 32 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (55560413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27780221 + 27780222.

It is an arithmetic number, because the mean of its divisors is an integer number (27780222).

Almost surely, 2^55560443 is an apocalyptic number.

55560443 is a deficient number, since it is larger than the sum of its proper divisors (1).

55560443 is an equidigital number, since it uses as much as digits as its factorization.

55560443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 55560443 is about 7453.8877775293. The cubic root of 55560443 is about 381.5826033109.

Adding to 55560443 its reverse (34406555), we get a palindrome (89966998).

The spelling of 55560443 in words is "fifty-five million, five hundred sixty thousand, four hundred forty-three".