54216725977 has 2 divisors, whose sum is σ = 54216725978. Its totient is φ = 54216725976.

The previous prime is 54216725957. The next prime is 54216726017. The reversal of 54216725977 is 77952761245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53146847296 + 1069878681 = 230536^2 + 32709^2 .

It is a cyclic number.

It is not a de Polignac number, because 54216725977 - 2¹¹ = 54216723929 is a prime.

It is not a weakly prime, because it can be changed into another prime (54216725957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27108362988 + 27108362989.

It is an arithmetic number, because the mean of its divisors is an integer number (27108362989).

Almost surely, 2^54216725977 is an apocalyptic number.

It is an amenable number.

54216725977 is a deficient number, since it is larger than the sum of its proper divisors (1).

54216725977 is an equidigital number, since it uses as much as digits as its factorization.

54216725977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7408800, while the sum is 55.

The spelling of 54216725977 in words is "fifty-four billion, two hundred sixteen million, seven hundred twenty-five thousand, nine hundred seventy-seven".