551145107 has 2 divisors, whose sum is σ = 551145108. Its totient is φ = 551145106.

The previous prime is 551145071. The next prime is 551145131. The reversal of 551145107 is 701541155.

551145107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (551145071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551145107 - 2⁸ = 551144851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551145107.

It is not a weakly prime, because it can be changed into another prime (551145157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275572553 + 275572554.

It is an arithmetic number, because the mean of its divisors is an integer number (275572554).

Almost surely, 2^551145107 is an apocalyptic number.

551145107 is a deficient number, since it is larger than the sum of its proper divisors (1).

551145107 is an equidigital number, since it uses as much as digits as its factorization.

551145107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3500, while the sum is 29.

The square root of 551145107 is about 23476.4798681574. The cubic root of 551145107 is about 819.8894888747.

The spelling of 551145107 in words is "five hundred fifty-one million, one hundred forty-five thousand, one hundred seven".