551335091 has 2 divisors, whose sum is σ = 551335092. Its totient is φ = 551335090.

The previous prime is 551335087. The next prime is 551335123. The reversal of 551335091 is 190533155.

It is a happy number.

551335091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (551335123) can be obtained adding 551335091 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551335091 - 2² = 551335087 is a prime.

It is not a weakly prime, because it can be changed into another prime (551535091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275667545 + 275667546.

It is an arithmetic number, because the mean of its divisors is an integer number (275667546).

Almost surely, 2^551335091 is an apocalyptic number.

551335091 is a deficient number, since it is larger than the sum of its proper divisors (1).

551335091 is an equidigital number, since it uses as much as digits as its factorization.

551335091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10125, while the sum is 32.

The square root of 551335091 is about 23480.5257820177. The cubic root of 551335091 is about 819.9836854775.

It can be divided in two parts, 5513 and 35091, that added together give a palindrome (40604).

The spelling of 551335091 in words is "five hundred fifty-one million, three hundred thirty-five thousand, ninety-one".