550561651 has 16 divisors (see below), whose sum is σ = 587145600. Its totient is φ = 514781568.

The previous prime is 550561639. The next prime is 550561657. The reversal of 550561651 is 156165055.

550561651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 550561651 - 2²⁵ = 517007219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550561657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 744640 + ... + 745378.

It is an arithmetic number, because the mean of its divisors is an integer number (36696600).

Almost surely, 2^550561651 is an apocalyptic number.

550561651 is a deficient number, since it is larger than the sum of its proper divisors (36583949).

550561651 is a wasteful number, since it uses less digits than its factorization.

550561651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 550561651 is about 23464.0501832058. The cubic root of 550561651 is about 819.6000682125.

The spelling of 550561651 in words is "five hundred fifty million, five hundred sixty-one thousand, six hundred fifty-one".