2556233 has 2 divisors, whose sum is σ = 2556234. Its totient is φ = 2556232.

The previous prime is 2556217. The next prime is 2556259. The reversal of 2556233 is 3326552.

It is an a-pointer prime, because the next prime (2556259) can be obtained adding 2556233 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2229049 + 327184 = 1493^2 + 572^2 .

It is a cyclic number.

It is not a de Polignac number, because 2556233 - 2⁴ = 2556217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2556133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278116 + 1278117.

It is an arithmetic number, because the mean of its divisors is an integer number (1278117).

2^2556233 is an apocalyptic number.

It is an amenable number.

2556233 is a deficient number, since it is larger than the sum of its proper divisors (1).

2556233 is an equidigital number, since it uses as much as digits as its factorization.

2556233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 26.

The square root of 2556233 is about 1598.8223791278. The cubic root of 2556233 is about 136.7309440520.

The spelling of 2556233 in words is "two million, five hundred fifty-six thousand, two hundred thirty-three".