554728550477 has 2 divisors, whose sum is σ = 554728550478. Its totient is φ = 554728550476.

The previous prime is 554728550393. The next prime is 554728550479. The reversal of 554728550477 is 774055827455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350812182436 + 203916368041 = 592294^2 + 451571^2 .

It is a cyclic number.

It is not a de Polignac number, because 554728550477 - 2⁸ = 554728550221 is a prime.

Together with 554728550479, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554728550479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277364275238 + 277364275239.

It is an arithmetic number, because the mean of its divisors is an integer number (277364275239).

Almost surely, 2^554728550477 is an apocalyptic number.

It is an amenable number.

554728550477 is a deficient number, since it is larger than the sum of its proper divisors (1).

554728550477 is an equidigital number, since it uses as much as digits as its factorization.

554728550477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54880000, while the sum is 59.

The spelling of 554728550477 in words is "five hundred fifty-four billion, seven hundred twenty-eight million, five hundred fifty thousand, four hundred seventy-seven".