55561705448 has 32 divisors (see below), whose sum is σ = 104914980000. Its totient is φ = 27584512320.

The previous prime is 55561705417. The next prime is 55561705457. The reversal of 55561705448 is 84450716555.

It is a super-2 number, since 2×55561705448² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55561705396 and 55561705405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4211903 + ... + 4225073.

It is an arithmetic number, because the mean of its divisors is an integer number (3278593125).

Almost surely, 2^55561705448 is an apocalyptic number.

It is an amenable number.

55561705448 is a deficient number, since it is larger than the sum of its proper divisors (49353274552).

55561705448 is a wasteful number, since it uses less digits than its factorization.

55561705448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16865 (or 16861 counting only the distinct ones).

The product of its (nonzero) digits is 3360000, while the sum is 50.

The spelling of 55561705448 in words is "fifty-five billion, five hundred sixty-one million, seven hundred five thousand, four hundred forty-eight".