54654243509 has 2 divisors, whose sum is σ = 54654243510. Its totient is φ = 54654243508.

The previous prime is 54654243439. The next prime is 54654243547. The reversal of 54654243509 is 90534245645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52654186225 + 2000057284 = 229465^2 + 44722^2 .

It is a cyclic number.

It is not a de Polignac number, because 54654243509 - 2⁸ = 54654243253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54654243409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27327121754 + 27327121755.

It is an arithmetic number, because the mean of its divisors is an integer number (27327121755).

Almost surely, 2^54654243509 is an apocalyptic number.

It is an amenable number.

54654243509 is a deficient number, since it is larger than the sum of its proper divisors (1).

54654243509 is an equidigital number, since it uses as much as digits as its factorization.

54654243509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 54654243509 in words is "fifty-four billion, six hundred fifty-four million, two hundred forty-three thousand, five hundred nine".