550384657 has 4 divisors (see below), whose sum is σ = 565259956. Its totient is φ = 535509360.

The previous prime is 550384643. The next prime is 550384661. The reversal of 550384657 is 756483055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 457917201 + 92467456 = 21399^2 + 9616^2 .

It is a cyclic number.

It is not a de Polignac number, because 550384657 - 2²⁷ = 416166929 is a prime.

It is a super-2 number, since 2×550384657² = 605846541322015298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550384057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7437594 + ... + 7437667.

It is an arithmetic number, because the mean of its divisors is an integer number (141314989).

Almost surely, 2^550384657 is an apocalyptic number.

It is an amenable number.

550384657 is a deficient number, since it is larger than the sum of its proper divisors (14875299).

550384657 is a wasteful number, since it uses less digits than its factorization.

550384657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14875298.

The product of its (nonzero) digits is 504000, while the sum is 43.

The square root of 550384657 is about 23460.2782805320. The cubic root of 550384657 is about 819.5122307335.

It can be divided in two parts, 55038 and 4657, that added together give a palindrome (59695).

The spelling of 550384657 in words is "five hundred fifty million, three hundred eighty-four thousand, six hundred fifty-seven".