551522371 has 2 divisors, whose sum is σ = 551522372. Its totient is φ = 551522370.

The previous prime is 551522357. The next prime is 551522401. The reversal of 551522371 is 173225155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551522371 - 2⁷ = 551522243 is a prime.

It is not a weakly prime, because it can be changed into another prime (551522311) 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, 275761185 + 275761186.

It is an arithmetic number, because the mean of its divisors is an integer number (275761186).

Almost surely, 2^551522371 is an apocalyptic number.

551522371 is a deficient number, since it is larger than the sum of its proper divisors (1).

551522371 is an equidigital number, since it uses as much as digits as its factorization.

551522371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10500, while the sum is 31.

The square root of 551522371 is about 23484.5134290664. The cubic root of 551522371 is about 820.0765202238.

The spelling of 551522371 in words is "five hundred fifty-one million, five hundred twenty-two thousand, three hundred seventy-one".