551200291 has 2 divisors, whose sum is σ = 551200292. Its totient is φ = 551200290.

The previous prime is 551200289. The next prime is 551200337. The reversal of 551200291 is 192002155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551200291 - 2¹ = 551200289 is a prime.

Together with 551200289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (551200201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275600145 + 275600146.

It is an arithmetic number, because the mean of its divisors is an integer number (275600146).

Almost surely, 2^551200291 is an apocalyptic number.

551200291 is a deficient number, since it is larger than the sum of its proper divisors (1).

551200291 is an equidigital number, since it uses as much as digits as its factorization.

551200291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 551200291 is about 23477.6551427096. The cubic root of 551200291 is about 819.9168520688.

The spelling of 551200291 in words is "five hundred fifty-one million, two hundred thousand, two hundred ninety-one".