54542545439 has 2 divisors, whose sum is σ = 54542545440. Its totient is φ = 54542545438.

The previous prime is 54542545399. The next prime is 54542545469. The reversal of 54542545439 is 93454524545.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54542545439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54542545469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27271272719 + 27271272720.

It is an arithmetic number, because the mean of its divisors is an integer number (27271272720).

Almost surely, 2^54542545439 is an apocalyptic number.

54542545439 is a deficient number, since it is larger than the sum of its proper divisors (1).

54542545439 is an equidigital number, since it uses as much as digits as its factorization.

54542545439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640000, while the sum is 50.

The spelling of 54542545439 in words is "fifty-four billion, five hundred forty-two million, five hundred forty-five thousand, four hundred thirty-nine".