255759065281 has 4 divisors (see below), whose sum is σ = 256119798100. Its totient is φ = 255398332464.

The previous prime is 255759065269. The next prime is 255759065291. The reversal of 255759065281 is 182560957552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79191025281 + 176568040000 = 281409^2 + 420200^2 .

It is a cyclic number.

It is not a de Polignac number, because 255759065281 - 2¹⁷ = 255758934209 is a prime.

It is a super-2 number, since 2×255759065281² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255759065201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180365346 + ... + 180366763.

It is an arithmetic number, because the mean of its divisors is an integer number (64029949525).

Almost surely, 2^255759065281 is an apocalyptic number.

It is an amenable number.

255759065281 is a deficient number, since it is larger than the sum of its proper divisors (360732819).

255759065281 is an equidigital number, since it uses as much as digits as its factorization.

255759065281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360732818.

The product of its (nonzero) digits is 7560000, while the sum is 55.

The spelling of 255759065281 in words is "two hundred fifty-five billion, seven hundred fifty-nine million, sixty-five thousand, two hundred eighty-one".