54042054215189 has 2 divisors, whose sum is σ = 54042054215190. Its totient is φ = 54042054215188.

The previous prime is 54042054215159. The next prime is 54042054215221. The reversal of 54042054215189 is 98151245024045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52506573884164 + 1535480331025 = 7246142^2 + 1239145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54042054215189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54042054215159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27021027107594 + 27021027107595.

It is an arithmetic number, because the mean of its divisors is an integer number (27021027107595).

Almost surely, 2^{54042054215189} is an apocalyptic number.

It is an amenable number.

54042054215189 is a deficient number, since it is larger than the sum of its proper divisors (1).

54042054215189 is an equidigital number, since it uses as much as digits as its factorization.

54042054215189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304000, while the sum is 50.

The spelling of 54042054215189 in words is "fifty-four trillion, forty-two billion, fifty-four million, two hundred fifteen thousand, one hundred eighty-nine".