256552333 has 2 divisors, whose sum is σ = 256552334. Its totient is φ = 256552332.

The previous prime is 256552279. The next prime is 256552349. The reversal of 256552333 is 333255652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167495364 + 89056969 = 12942^2 + 9437^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256552333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256552363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128276166 + 128276167.

It is an arithmetic number, because the mean of its divisors is an integer number (128276167).

Almost surely, 2^256552333 is an apocalyptic number.

It is an amenable number.

256552333 is a deficient number, since it is larger than the sum of its proper divisors (1).

256552333 is an equidigital number, since it uses as much as digits as its factorization.

256552333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81000, while the sum is 34.

The square root of 256552333 is about 16017.2511062292. The cubic root of 256552333 is about 635.4167458802.

The spelling of 256552333 in words is "two hundred fifty-six million, five hundred fifty-two thousand, three hundred thirty-three".