55571543346751 has 2 divisors, whose sum is σ = 55571543346752. Its totient is φ = 55571543346750.

The previous prime is 55571543346667. The next prime is 55571543346931. The reversal of 55571543346751 is 15764334517555.

55571543346751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55571543346751 - 2⁴¹ = 53372520091199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55571543346751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55571543046751) by changing a digit.

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 as a sum of consecutive naturals, namely, 27785771673375 + 27785771673376.

It is an arithmetic number, because the mean of its divisors is an integer number (27785771673376).

Almost surely, 2^{55571543346751} is an apocalyptic number.

55571543346751 is a deficient number, since it is larger than the sum of its proper divisors (1).

55571543346751 is an equidigital number, since it uses as much as digits as its factorization.

55571543346751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132300000, while the sum is 61.

The spelling of 55571543346751 in words is "fifty-five trillion, five hundred seventy-one billion, five hundred forty-three million, three hundred forty-six thousand, seven hundred fifty-one".