551797769 has 2 divisors, whose sum is σ = 551797770. Its totient is φ = 551797768.

The previous prime is 551797759. The next prime is 551797811. The reversal of 551797769 is 967797155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 549199225 + 2598544 = 23435^2 + 1612^2 .

It is a cyclic number.

It is not a de Polignac number, because 551797769 - 2²⁴ = 535020553 is a prime.

It is a super-2 number, since 2×551797769² = 608961555746754722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (551797709) 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, 275898884 + 275898885.

It is an arithmetic number, because the mean of its divisors is an integer number (275898885).

Almost surely, 2^551797769 is an apocalyptic number.

It is an amenable number.

551797769 is a deficient number, since it is larger than the sum of its proper divisors (1).

551797769 is an equidigital number, since it uses as much as digits as its factorization.

551797769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4167450, while the sum is 56.

The square root of 551797769 is about 23490.3760932004. The cubic root of 551797769 is about 820.2129969194.

The spelling of 551797769 in words is "five hundred fifty-one million, seven hundred ninety-seven thousand, seven hundred sixty-nine".