255440573 has 2 divisors, whose sum is σ = 255440574. Its totient is φ = 255440572.

The previous prime is 255440567. The next prime is 255440741. The reversal of 255440573 is 375044552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202834564 + 52606009 = 14242^2 + 7253^2 .

It is a cyclic number.

It is not a de Polignac number, because 255440573 - 2⁴ = 255440557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255440533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127720286 + 127720287.

It is an arithmetic number, because the mean of its divisors is an integer number (127720287).

Almost surely, 2^255440573 is an apocalyptic number.

It is an amenable number.

255440573 is a deficient number, since it is larger than the sum of its proper divisors (1).

255440573 is an equidigital number, since it uses as much as digits as its factorization.

255440573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84000, while the sum is 35.

The square root of 255440573 is about 15982.5083450627. The cubic root of 255440573 is about 634.4975652364.

The spelling of 255440573 in words is "two hundred fifty-five million, four hundred forty thousand, five hundred seventy-three".