551016449 has 2 divisors, whose sum is σ = 551016450. Its totient is φ = 551016448.

The previous prime is 551016439. The next prime is 551016457. The reversal of 551016449 is 944610155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 499075600 + 51940849 = 22340^2 + 7207^2 .

It is a cyclic number.

It is not a de Polignac number, because 551016449 - 2¹² = 551012353 is a prime.

It is not a weakly prime, because it can be changed into another prime (551016439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275508224 + 275508225.

It is an arithmetic number, because the mean of its divisors is an integer number (275508225).

Almost surely, 2^551016449 is an apocalyptic number.

It is an amenable number.

551016449 is a deficient number, since it is larger than the sum of its proper divisors (1).

551016449 is an equidigital number, since it uses as much as digits as its factorization.

551016449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 551016449 is about 23473.7395614759. The cubic root of 551016449 is about 819.8256862272.

The spelling of 551016449 in words is "five hundred fifty-one million, sixteen thousand, four hundred forty-nine".