255530025533 has 2 divisors, whose sum is σ = 255530025534. Its totient is φ = 255530025532.

The previous prime is 255530025521. The next prime is 255530025577. The reversal of 255530025533 is 335520035552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176108640409 + 79421385124 = 419653^2 + 281818^2 .

It is a cyclic number.

It is not a de Polignac number, because 255530025533 - 2¹⁰ = 255530024509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255530025503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127765012766 + 127765012767.

It is an arithmetic number, because the mean of its divisors is an integer number (127765012767).

Almost surely, 2^255530025533 is an apocalyptic number.

It is an amenable number.

255530025533 is a deficient number, since it is larger than the sum of its proper divisors (1).

255530025533 is an equidigital number, since it uses as much as digits as its factorization.

255530025533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 337500, while the sum is 38.

The spelling of 255530025533 in words is "two hundred fifty-five billion, five hundred thirty million, twenty-five thousand, five hundred thirty-three".