551155289 has 2 divisors, whose sum is σ = 551155290. Its totient is φ = 551155288.

The previous prime is 551155273. The next prime is 551155301. The reversal of 551155289 is 982551155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 379938064 + 171217225 = 19492^2 + 13085^2 .

It is a cyclic number.

It is not a de Polignac number, because 551155289 - 2⁴ = 551155273 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_28902974 and since 551155289 and 28902974 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (551115289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275577644 + 275577645.

It is an arithmetic number, because the mean of its divisors is an integer number (275577645).

Almost surely, 2^551155289 is an apocalyptic number.

It is an amenable number.

551155289 is a deficient number, since it is larger than the sum of its proper divisors (1).

551155289 is an equidigital number, since it uses as much as digits as its factorization.

551155289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90000, while the sum is 41.

The square root of 551155289 is about 23476.6967224948. The cubic root of 551155289 is about 819.8945377951.

The spelling of 551155289 in words is "five hundred fifty-one million, one hundred fifty-five thousand, two hundred eighty-nine".