255712481 has 4 divisors (see below), whose sum is σ = 255763092. Its totient is φ = 255661872.

The previous prime is 255712451. The next prime is 255712537. The reversal of 255712481 is 184217552.

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 31192225 + 224520256 = 5585^2 + 14984^2 .

It is a cyclic number.

It is not a de Polignac number, because 255712481 - 2⁶ = 255712417 is a prime.

It is a super-2 number, since 2×255712481² = 130777745878350722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255712411) 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, 16766 + ... + 28151.

It is an arithmetic number, because the mean of its divisors is an integer number (63940773).

Almost surely, 2^255712481 is an apocalyptic number.

It is an amenable number.

255712481 is a deficient number, since it is larger than the sum of its proper divisors (50611).

255712481 is an equidigital number, since it uses as much as digits as its factorization.

255712481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50610.

The product of its digits is 22400, while the sum is 35.

The square root of 255712481 is about 15991.0125070303. The cubic root of 255712481 is about 634.7226192576.

The spelling of 255712481 in words is "two hundred fifty-five million, seven hundred twelve thousand, four hundred eighty-one".