228554533 has 2 divisors, whose sum is σ = 228554534. Its totient is φ = 228554532.

The previous prime is 228554509. The next prime is 228554549. The reversal of 228554533 is 335455822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216178209 + 12376324 = 14703^2 + 3518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228554533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228554492 and 228554501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228554563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114277266 + 114277267.

It is an arithmetic number, because the mean of its divisors is an integer number (114277267).

Almost surely, 2^228554533 is an apocalyptic number.

It is an amenable number.

228554533 is a deficient number, since it is larger than the sum of its proper divisors (1).

228554533 is an equidigital number, since it uses as much as digits as its factorization.

228554533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144000, while the sum is 37.

The square root of 228554533 is about 15118.0201415397. The cubic root of 228554533 is about 611.4063520530.

The spelling of 228554533 in words is "two hundred twenty-eight million, five hundred fifty-four thousand, five hundred thirty-three".