551606201 has 4 divisors (see below), whose sum is σ = 553085412. Its totient is φ = 550126992.

The previous prime is 551606197. The next prime is 551606207. The reversal of 551606201 is 102606155.

551606201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 456036025 + 95570176 = 21355^2 + 9776^2 .

It is a cyclic number.

It is not a de Polignac number, because 551606201 - 2² = 551606197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551606207) 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, 739046 + ... + 739791.

It is an arithmetic number, because the mean of its divisors is an integer number (138271353).

Almost surely, 2^551606201 is an apocalyptic number.

It is an amenable number.

551606201 is a deficient number, since it is larger than the sum of its proper divisors (1479211).

551606201 is a wasteful number, since it uses less digits than its factorization.

551606201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479210.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 551606201 is about 23486.2981544559. The cubic root of 551606201 is about 820.1180679684.

The spelling of 551606201 in words is "five hundred fifty-one million, six hundred six thousand, two hundred one".