551460869 has 2 divisors, whose sum is σ = 551460870. Its totient is φ = 551460868.

The previous prime is 551460851. The next prime is 551460901. The reversal of 551460869 is 968064155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 479040769 + 72420100 = 21887^2 + 8510^2 .

It is a cyclic number.

It is not a de Polignac number, because 551460869 - 2²⁰ = 550412293 is a prime.

It is a super-2 number, since 2×551460869² = 608218180076470322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551460809) 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, 275730434 + 275730435.

It is an arithmetic number, because the mean of its divisors is an integer number (275730435).

Almost surely, 2^551460869 is an apocalyptic number.

It is an amenable number.

551460869 is a deficient number, since it is larger than the sum of its proper divisors (1).

551460869 is an equidigital number, since it uses as much as digits as its factorization.

551460869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 551460869 is about 23483.2039764594. The cubic root of 551460869 is about 820.0460359837.

The spelling of 551460869 in words is "five hundred fifty-one million, four hundred sixty thousand, eight hundred sixty-nine".