551345929 has 2 divisors, whose sum is σ = 551345930. Its totient is φ = 551345928.

The previous prime is 551345923. The next prime is 551345939. The reversal of 551345929 is 929543155.

551345929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 551169529 + 176400 = 23477^2 + 420^2 .

It is a cyclic number.

It is not a de Polignac number, because 551345929 - 2⁷ = 551345801 is a prime.

It is not a weakly prime, because it can be changed into another prime (551345923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275672964 + 275672965.

It is an arithmetic number, because the mean of its divisors is an integer number (275672965).

Almost surely, 2^551345929 is an apocalyptic number.

It is an amenable number.

551345929 is a deficient number, since it is larger than the sum of its proper divisors (1).

551345929 is an equidigital number, since it uses as much as digits as its factorization.

551345929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 243000, while the sum is 43.

The square root of 551345929 is about 23480.7565678792. The cubic root of 551345929 is about 819.9890584501.

The spelling of 551345929 in words is "five hundred fifty-one million, three hundred forty-five thousand, nine hundred twenty-nine".