551552663 has 2 divisors, whose sum is σ = 551552664. Its totient is φ = 551552662.

The previous prime is 551552647. The next prime is 551552723. The reversal of 551552663 is 366255155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551552663 - 2⁴ = 551552647 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551552633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275776331 + 275776332.

It is an arithmetic number, because the mean of its divisors is an integer number (275776332).

Almost surely, 2^551552663 is an apocalyptic number.

551552663 is a deficient number, since it is larger than the sum of its proper divisors (1).

551552663 is an equidigital number, since it uses as much as digits as its factorization.

551552663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 135000, while the sum is 38.

The square root of 551552663 is about 23485.1583558638. The cubic root of 551552663 is about 820.0915340017.

The spelling of 551552663 in words is "five hundred fifty-one million, five hundred fifty-two thousand, six hundred sixty-three".