54145522409971 has 2 divisors, whose sum is σ = 54145522409972. Its totient is φ = 54145522409970.

The previous prime is 54145522409941. The next prime is 54145522410073. The reversal of 54145522409971 is 17990422554145.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54145522409971 - 2⁷ = 54145522409843 is a prime.

It is not a weakly prime, because it can be changed into another prime (54145522409941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27072761204985 + 27072761204986.

It is an arithmetic number, because the mean of its divisors is an integer number (27072761204986).

Almost surely, 2^{54145522409971} is an apocalyptic number.

54145522409971 is a deficient number, since it is larger than the sum of its proper divisors (1).

54145522409971 is an equidigital number, since it uses as much as digits as its factorization.

54145522409971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144000, while the sum is 58.

The spelling of 54145522409971 in words is "fifty-four trillion, one hundred forty-five billion, five hundred twenty-two million, four hundred nine thousand, nine hundred seventy-one".