54239537609 has 2 divisors, whose sum is σ = 54239537610. Its totient is φ = 54239537608.

The previous prime is 54239537603. The next prime is 54239537701. The reversal of 54239537609 is 90673593245.

54239537609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50511214009 + 3728323600 = 224747^2 + 61060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54239537609 is a prime.

It is not a weakly prime, because it can be changed into another prime (54239537603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27119768804 + 27119768805.

It is an arithmetic number, because the mean of its divisors is an integer number (27119768805).

Almost surely, 2^54239537609 is an apocalyptic number.

It is an amenable number.

54239537609 is a deficient number, since it is larger than the sum of its proper divisors (1).

54239537609 is an equidigital number, since it uses as much as digits as its factorization.

54239537609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6123600, while the sum is 53.

The spelling of 54239537609 in words is "fifty-four billion, two hundred thirty-nine million, five hundred thirty-seven thousand, six hundred nine".