551560514977 has 2 divisors, whose sum is σ = 551560514978. Its totient is φ = 551560514976.

The previous prime is 551560514959. The next prime is 551560514983. The reversal of 551560514977 is 779415065155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 406436850576 + 145123664401 = 637524^2 + 380951^2 .

It is a cyclic number.

It is not a de Polignac number, because 551560514977 - 2¹¹ = 551560512929 is a prime.

It is not a weakly prime, because it can be changed into another prime (551560574977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275780257488 + 275780257489.

It is an arithmetic number, because the mean of its divisors is an integer number (275780257489).

Almost surely, 2^551560514977 is an apocalyptic number.

It is an amenable number.

551560514977 is a deficient number, since it is larger than the sum of its proper divisors (1).

551560514977 is an equidigital number, since it uses as much as digits as its factorization.

551560514977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6615000, while the sum is 55.

The spelling of 551560514977 in words is "five hundred fifty-one billion, five hundred sixty million, five hundred fourteen thousand, nine hundred seventy-seven".