551032201 has 2 divisors, whose sum is σ = 551032202. Its totient is φ = 551032200.

The previous prime is 551032199. The next prime is 551032213. The reversal of 551032201 is 102230155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 545175801 + 5856400 = 23349^2 + 2420^2 .

It is a cyclic number.

It is not a de Polignac number, because 551032201 - 2¹ = 551032199 is a prime.

Together with 551032199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (551032291) 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 as a sum of consecutive naturals, namely, 275516100 + 275516101.

It is an arithmetic number, because the mean of its divisors is an integer number (275516101).

Almost surely, 2^551032201 is an apocalyptic number.

It is an amenable number.

551032201 is a deficient number, since it is larger than the sum of its proper divisors (1).

551032201 is an equidigital number, since it uses as much as digits as its factorization.

551032201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 551032201 is about 23474.0750829506. The cubic root of 551032201 is about 819.8334983177.

Adding to 551032201 its reverse (102230155), we get a palindrome (653262356).

It can be divided in two parts, 55 and 1032201, that added together give a square (1032256 = 1016²).

The spelling of 551032201 in words is "five hundred fifty-one million, thirty-two thousand, two hundred one".