550647447 has 24 divisors (see below), whose sum is σ = 883522800. Its totient is φ = 303803136.

The previous prime is 550647437. The next prime is 550647457. The reversal of 550647447 is 744746055.

It is an interprime number because it is at equal distance from previous prime (550647437) and next prime (550647457).

It is not a de Polignac number, because 550647447 - 2²⁷ = 416429719 is a prime.

It is a super-2 number, since 2×550647447² = 606425221775235618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550647399 and 550647408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550647437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60322 + ... + 68847.

It is an arithmetic number, because the mean of its divisors is an integer number (36813450).

Almost surely, 2^550647447 is an apocalyptic number.

550647447 is a deficient number, since it is larger than the sum of its proper divisors (332875353).

550647447 is a wasteful number, since it uses less digits than its factorization.

550647447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129215 (or 129208 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 42.

The square root of 550647447 is about 23465.8783556039. The cubic root of 550647447 is about 819.6426397422.

The spelling of 550647447 in words is "five hundred fifty million, six hundred forty-seven thousand, four hundred forty-seven".