551087233 has 2 divisors, whose sum is σ = 551087234. Its totient is φ = 551087232.

The previous prime is 551087231. The next prime is 551087239. The reversal of 551087233 is 332780155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 512931904 + 38155329 = 22648^2 + 6177^2 .

It is a cyclic number.

It is not a de Polignac number, because 551087233 - 2¹ = 551087231 is a prime.

Together with 551087231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (551087231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275543616 + 275543617.

It is an arithmetic number, because the mean of its divisors is an integer number (275543617).

Almost surely, 2^551087233 is an apocalyptic number.

It is an amenable number.

551087233 is a deficient number, since it is larger than the sum of its proper divisors (1).

551087233 is an equidigital number, since it uses as much as digits as its factorization.

551087233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 551087233 is about 23475.2472404446. The cubic root of 551087233 is about 819.8607898717.

The spelling of 551087233 in words is "five hundred fifty-one million, eighty-seven thousand, two hundred thirty-three".