2228630533 has 2 divisors, whose sum is σ = 2228630534. Its totient is φ = 2228630532.

The previous prime is 2228630497. The next prime is 2228630567. The reversal of 2228630533 is 3350368222.

It is an a-pointer prime, because the next prime (2228630567) can be obtained adding 2228630533 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1393304929 + 835325604 = 37327^2 + 28902^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2228630533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2228610533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114315266 + 1114315267.

It is an arithmetic number, because the mean of its divisors is an integer number (1114315267).

Almost surely, 2^2228630533 is an apocalyptic number.

It is an amenable number.

2228630533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2228630533 is an equidigital number, since it uses as much as digits as its factorization.

2228630533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 2228630533 is about 47208.3735474968. The cubic root of 2228630533 is about 1306.2090609698.

Adding to 2228630533 its reverse (3350368222), we get a palindrome (5578998755).

The spelling of 2228630533 in words is "two billion, two hundred twenty-eight million, six hundred thirty thousand, five hundred thirty-three".