551416249 has 2 divisors, whose sum is σ = 551416250. Its totient is φ = 551416248.

The previous prime is 551416163. The next prime is 551416277. The reversal of 551416249 is 942614155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 492618025 + 58798224 = 22195^2 + 7668^2 .

It is a cyclic number.

It is not a de Polignac number, because 551416249 - 2⁹ = 551415737 is a prime.

It is a super-2 number, since 2×551416249² = 608119759322460002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (551416279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275708124 + 275708125.

It is an arithmetic number, because the mean of its divisors is an integer number (275708125).

Almost surely, 2^551416249 is an apocalyptic number.

It is an amenable number.

551416249 is a deficient number, since it is larger than the sum of its proper divisors (1).

551416249 is an equidigital number, since it uses as much as digits as its factorization.

551416249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 37.

The square root of 551416249 is about 23482.2539165217. The cubic root of 551416249 is about 820.0239181007.

The spelling of 551416249 in words is "five hundred fifty-one million, four hundred sixteen thousand, two hundred forty-nine".