255039425281 has 4 divisors (see below), whose sum is σ = 255117878064. Its totient is φ = 254960972500.

The previous prime is 255039425279. The next prime is 255039425287. The reversal of 255039425281 is 182524930552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255039425281 - 2¹ = 255039425279 is a prime.

It is a super-2 number, since 2×255039425281² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255039425287) 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, 39221515 + ... + 39228016.

It is an arithmetic number, because the mean of its divisors is an integer number (63779469516).

Almost surely, 2^255039425281 is an apocalyptic number.

It is an amenable number.

255039425281 is a deficient number, since it is larger than the sum of its proper divisors (78452783).

255039425281 is an equidigital number, since it uses as much as digits as its factorization.

255039425281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78452782.

The product of its (nonzero) digits is 864000, while the sum is 46.

The spelling of 255039425281 in words is "two hundred fifty-five billion, thirty-nine million, four hundred twenty-five thousand, two hundred eighty-one".