255573457 has 2 divisors, whose sum is σ = 255573458. Its totient is φ = 255573456.

The previous prime is 255573421. The next prime is 255573547. The reversal of 255573457 is 754375552.

Together with next prime (255573547) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 246835521 + 8737936 = 15711^2 + 2956^2 .

It is a cyclic number.

It is not a de Polignac number, because 255573457 - 2²³ = 247184849 is a prime.

It is not a weakly prime, because it can be changed into another prime (255573407) 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, 127786728 + 127786729.

It is an arithmetic number, because the mean of its divisors is an integer number (127786729).

Almost surely, 2^255573457 is an apocalyptic number.

It is an amenable number.

255573457 is a deficient number, since it is larger than the sum of its proper divisors (1).

255573457 is an equidigital number, since it uses as much as digits as its factorization.

255573457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 735000, while the sum is 43.

The square root of 255573457 is about 15986.6649742840. The cubic root of 255573457 is about 634.6075711987.

The spelling of 255573457 in words is "two hundred fifty-five million, five hundred seventy-three thousand, four hundred fifty-seven".