54020782657 has 2 divisors, whose sum is σ = 54020782658. Its totient is φ = 54020782656.

The previous prime is 54020782643. The next prime is 54020782667. The reversal of 54020782657 is 75628702045.

54020782657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45854226496 + 8166556161 = 214136^2 + 90369^2 .

It is a cyclic number.

It is not a de Polignac number, because 54020782657 - 2²³ = 54012394049 is a prime.

It is not a weakly prime, because it can be changed into another prime (54020782637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27010391328 + 27010391329.

It is an arithmetic number, because the mean of its divisors is an integer number (27010391329).

Almost surely, 2^54020782657 is an apocalyptic number.

It is an amenable number.

54020782657 is a deficient number, since it is larger than the sum of its proper divisors (1).

54020782657 is an equidigital number, since it uses as much as digits as its factorization.

54020782657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 940800, while the sum is 46.

The spelling of 54020782657 in words is "fifty-four billion, twenty million, seven hundred eighty-two thousand, six hundred fifty-seven".