551100549977 has 2 divisors, whose sum is σ = 551100549978. Its totient is φ = 551100549976.

The previous prime is 551100549949. The next prime is 551100550001. The reversal of 551100549977 is 779945001155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350056822336 + 201043727641 = 591656^2 + 448379^2 .

It is a cyclic number.

It is not a de Polignac number, because 551100549977 - 2¹² = 551100545881 is a prime.

It is not a weakly prime, because it can be changed into another prime (551100549917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275550274988 + 275550274989.

It is an arithmetic number, because the mean of its divisors is an integer number (275550274989).

Almost surely, 2^551100549977 is an apocalyptic number.

It is an amenable number.

551100549977 is a deficient number, since it is larger than the sum of its proper divisors (1).

551100549977 is an equidigital number, since it uses as much as digits as its factorization.

551100549977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1984500, while the sum is 53.

The spelling of 551100549977 in words is "five hundred fifty-one billion, one hundred million, five hundred forty-nine thousand, nine hundred seventy-seven".