550343407 has 2 divisors, whose sum is σ = 550343408. Its totient is φ = 550343406.

The previous prime is 550343399. The next prime is 550343413. The reversal of 550343407 is 704343055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550343407 - 2³ = 550343399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550343477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275171703 + 275171704.

It is an arithmetic number, because the mean of its divisors is an integer number (275171704).

Almost surely, 2^550343407 is an apocalyptic number.

550343407 is a deficient number, since it is larger than the sum of its proper divisors (1).

550343407 is an equidigital number, since it uses as much as digits as its factorization.

550343407 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 31.

The square root of 550343407 is about 23459.3991184770. The cubic root of 550343407 is about 819.4917567349.

The spelling of 550343407 in words is "five hundred fifty million, three hundred forty-three thousand, four hundred seven".