2228553961 has 2 divisors, whose sum is σ = 2228553962. Its totient is φ = 2228553960.

The previous prime is 2228553869. The next prime is 2228553979. The reversal of 2228553961 is 1693558222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2203363600 + 25190361 = 46940^2 + 5019^2 .

It is a cyclic number.

It is not a de Polignac number, because 2228553961 - 2¹³ = 2228545769 is a prime.

It is not a weakly prime, because it can be changed into another prime (2228553361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114276980 + 1114276981.

It is an arithmetic number, because the mean of its divisors is an integer number (1114276981).

Almost surely, 2^2228553961 is an apocalyptic number.

It is an amenable number.

2228553961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2228553961 is an equidigital number, since it uses as much as digits as its factorization.

2228553961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 43.

The square root of 2228553961 is about 47207.5625403388. The cubic root of 2228553961 is about 1306.1941010824.

The spelling of 2228553961 in words is "two billion, two hundred twenty-eight million, five hundred fifty-three thousand, nine hundred sixty-one".