105520573447 has 2 divisors, whose sum is σ = 105520573448. Its totient is φ = 105520573446.

The previous prime is 105520573421. The next prime is 105520573481. The reversal of 105520573447 is 744375025501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105520573447 - 2²³ = 105512184839 is a prime.

It is a super-2 number, since 2×105520573447² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105520573547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52760286723 + 52760286724.

It is an arithmetic number, because the mean of its divisors is an integer number (52760286724).

Almost surely, 2^105520573447 is an apocalyptic number.

105520573447 is a deficient number, since it is larger than the sum of its proper divisors (1).

105520573447 is an equidigital number, since it uses as much as digits as its factorization.

105520573447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588000, while the sum is 43.

Adding to 105520573447 its reverse (744375025501), we get a palindrome (849895598948).

The spelling of 105520573447 in words is "one hundred five billion, five hundred twenty million, five hundred seventy-three thousand, four hundred forty-seven".