54438545897 has 2 divisors, whose sum is σ = 54438545898. Its totient is φ = 54438545896.

The previous prime is 54438545891. The next prime is 54438545983. The reversal of 54438545897 is 79854583445.

54438545897 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., 53130711001 + 1307834896 = 230501^2 + 36164^2 .

It is a cyclic number.

It is not a de Polignac number, because 54438545897 - 2¹⁶ = 54438480361 is a prime.

It is not a weakly prime, because it can be changed into another prime (54438545891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27219272948 + 27219272949.

It is an arithmetic number, because the mean of its divisors is an integer number (27219272949).

Almost surely, 2^54438545897 is an apocalyptic number.

It is an amenable number.

54438545897 is a deficient number, since it is larger than the sum of its proper divisors (1).

54438545897 is an equidigital number, since it uses as much as digits as its factorization.

54438545897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768000, while the sum is 62.

The spelling of 54438545897 in words is "fifty-four billion, four hundred thirty-eight million, five hundred forty-five thousand, eight hundred ninety-seven".