255921899153 has 2 divisors, whose sum is σ = 255921899154. Its totient is φ = 255921899152.

The previous prime is 255921899143. The next prime is 255921899183. The reversal of 255921899153 is 351998129552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148211910289 + 107709988864 = 384983^2 + 328192^2 .

It is a cyclic number.

It is not a de Polignac number, because 255921899153 - 2¹⁶ = 255921833617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255921899092 and 255921899101.

It is not a weakly prime, because it can be changed into another prime (255921899143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127960949576 + 127960949577.

It is an arithmetic number, because the mean of its divisors is an integer number (127960949577).

Almost surely, 2^255921899153 is an apocalyptic number.

It is an amenable number.

255921899153 is a deficient number, since it is larger than the sum of its proper divisors (1).

255921899153 is an equidigital number, since it uses as much as digits as its factorization.

255921899153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748000, while the sum is 59.

The spelling of 255921899153 in words is "two hundred fifty-five billion, nine hundred twenty-one million, eight hundred ninety-nine thousand, one hundred fifty-three".