55120260443 has 2 divisors, whose sum is σ = 55120260444. Its totient is φ = 55120260442.

The previous prime is 55120260439. The next prime is 55120260451. The reversal of 55120260443 is 34406202155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55120260443 - 2² = 55120260439 is a prime.

It is a super-2 number, since 2×55120260443² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55120260463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27560130221 + 27560130222.

It is an arithmetic number, because the mean of its divisors is an integer number (27560130222).

Almost surely, 2^55120260443 is an apocalyptic number.

55120260443 is a deficient number, since it is larger than the sum of its proper divisors (1).

55120260443 is an equidigital number, since it uses as much as digits as its factorization.

55120260443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 55120260443 its reverse (34406202155), we get a palindrome (89526462598).

The spelling of 55120260443 in words is "fifty-five billion, one hundred twenty million, two hundred sixty thousand, four hundred forty-three".