550553636 has 48 divisors (see below), whose sum is σ = 1056577536. Its totient is φ = 249951744.

The previous prime is 550553621. The next prime is 550553657. The reversal of 550553636 is 636355055.

It is a happy number.

It is a super-2 number, since 2×550553636² = 606218612225640992, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 550553636.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318671 + ... + 320393.

It is an arithmetic number, because the mean of its divisors is an integer number (22012032).

Almost surely, 2^550553636 is an apocalyptic number.

It is an amenable number.

550553636 is a deficient number, since it is larger than the sum of its proper divisors (506023900).

550553636 is a wasteful number, since it uses less digits than its factorization.

550553636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 202500, while the sum is 38.

The square root of 550553636 is about 23463.8793893934. The cubic root of 550553636 is about 819.5960909852.

The spelling of 550553636 in words is "five hundred fifty million, five hundred fifty-three thousand, six hundred thirty-six".