255018600481 has 2 divisors, whose sum is σ = 255018600482. Its totient is φ = 255018600480.

The previous prime is 255018600439. The next prime is 255018600491. The reversal of 255018600481 is 184006810552.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140763784225 + 114254816256 = 375185^2 + 338016^2 .

It is a cyclic number.

It is not a de Polignac number, because 255018600481 - 2¹⁹ = 255018076193 is a prime.

It is a super-2 number, since 2×255018600481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (255018600491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127509300240 + 127509300241.

It is an arithmetic number, because the mean of its divisors is an integer number (127509300241).

Almost surely, 2^255018600481 is an apocalyptic number.

It is an amenable number.

255018600481 is a deficient number, since it is larger than the sum of its proper divisors (1).

255018600481 is an equidigital number, since it uses as much as digits as its factorization.

255018600481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76800, while the sum is 40.

The spelling of 255018600481 in words is "two hundred fifty-five billion, eighteen million, six hundred thousand, four hundred eighty-one".