255724453 has 2 divisors, whose sum is σ = 255724454. Its totient is φ = 255724452.

The previous prime is 255724451. The next prime is 255724457. The reversal of 255724453 is 354427552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220879044 + 34845409 = 14862^2 + 5903^2 .

It is a cyclic number.

It is not a de Polignac number, because 255724453 - 2¹ = 255724451 is a prime.

Together with 255724451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255724451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127862226 + 127862227.

It is an arithmetic number, because the mean of its divisors is an integer number (127862227).

Almost surely, 2^255724453 is an apocalyptic number.

It is an amenable number.

255724453 is a deficient number, since it is larger than the sum of its proper divisors (1).

255724453 is an equidigital number, since it uses as much as digits as its factorization.

255724453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 37.

The square root of 255724453 is about 15991.3868379200. The cubic root of 255724453 is about 634.7325246282.

The spelling of 255724453 in words is "two hundred fifty-five million, seven hundred twenty-four thousand, four hundred fifty-three".