550651 has 2 divisors, whose sum is σ = 550652. Its totient is φ = 550650.

The previous prime is 550637. The next prime is 550657. The reversal of 550651 is 156055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550651 - 2⁹ = 550139 is a prime.

It is a super-3 number, since 3×550651³ = 500899446142633353, which contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (550657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275325 + 275326.

It is an arithmetic number, because the mean of its divisors is an integer number (275326).

2⁵⁵⁰⁶⁵¹ is an apocalyptic number.

550651 is a deficient number, since it is larger than the sum of its proper divisors (1).

550651 is an equidigital number, since it uses as much as digits as its factorization.

550651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 550651 is about 742.0586230211. The cubic root of 550651 is about 81.9644402627.

The spelling of 550651 in words is "five hundred fifty thousand, six hundred fifty-one".