550606669 has 4 divisors (see below), whose sum is σ = 550733344. Its totient is φ = 550479996.

The previous prime is 550606631. The next prime is 550606741. The reversal of 550606669 is 966606055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 966606055 = 5 ⋅193321211.

It is a cyclic number.

It is not a de Polignac number, because 550606669 - 2⁷ = 550606541 is a prime.

It is a super-2 number, since 2×550606669² = 606335407894551122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550606619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56577 + ... + 65590.

It is an arithmetic number, because the mean of its divisors is an integer number (137683336).

Almost surely, 2^550606669 is an apocalyptic number.

It is an amenable number.

550606669 is a deficient number, since it is larger than the sum of its proper divisors (126675).

550606669 is a wasteful number, since it uses less digits than its factorization.

550606669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126674.

The product of its (nonzero) digits is 291600, while the sum is 43.

The square root of 550606669 is about 23465.0094608973. The cubic root of 550606669 is about 819.6224064618.

The spelling of 550606669 in words is "five hundred fifty million, six hundred six thousand, six hundred sixty-nine".