55515423451471 has 2 divisors, whose sum is σ = 55515423451472. Its totient is φ = 55515423451470.

The previous prime is 55515423451387. The next prime is 55515423451541. The reversal of 55515423451471 is 17415432451555.

55515423451471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55515423451471 - 2²¹ = 55515421354319 is a prime.

It is a super-3 number, since 3×55515423451471³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55515423454471) 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, 27757711725735 + 27757711725736.

It is an arithmetic number, because the mean of its divisors is an integer number (27757711725736).

Almost surely, 2^{55515423451471} is an apocalyptic number.

55515423451471 is a deficient number, since it is larger than the sum of its proper divisors (1).

55515423451471 is an equidigital number, since it uses as much as digits as its factorization.

55515423451471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400000, while the sum is 52.

The spelling of 55515423451471 in words is "fifty-five trillion, five hundred fifteen billion, four hundred twenty-three million, four hundred fifty-one thousand, four hundred seventy-one".