55453843457 has 2 divisors, whose sum is σ = 55453843458. Its totient is φ = 55453843456.

The previous prime is 55453843453. The next prime is 55453843483. The reversal of 55453843457 is 75434835455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54903987856 + 549855601 = 234316^2 + 23449^2 .

It is a cyclic number.

It is not a de Polignac number, because 55453843457 - 2² = 55453843453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55453843399 and 55453843408.

It is not a weakly prime, because it can be changed into another prime (55453843451) 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, 27726921728 + 27726921729.

It is an arithmetic number, because the mean of its divisors is an integer number (27726921729).

Almost surely, 2^55453843457 is an apocalyptic number.

It is an amenable number.

55453843457 is a deficient number, since it is larger than the sum of its proper divisors (1).

55453843457 is an equidigital number, since it uses as much as digits as its factorization.

55453843457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160000, while the sum is 53.

The spelling of 55453843457 in words is "fifty-five billion, four hundred fifty-three million, eight hundred forty-three thousand, four hundred fifty-seven".