255395447 has 4 divisors (see below), whose sum is σ = 261334920. Its totient is φ = 249455976.

The previous prime is 255395443. The next prime is 255395461. The reversal of 255395447 is 744593552.

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

It is a cyclic number.

It is not a de Polignac number, because 255395447 - 2² = 255395443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255395398 and 255395407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255395443) 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, 2969672 + ... + 2969757.

It is an arithmetic number, because the mean of its divisors is an integer number (65333730).

Almost surely, 2^255395447 is an apocalyptic number.

255395447 is a deficient number, since it is larger than the sum of its proper divisors (5939473).

255395447 is an equidigital number, since it uses as much as digits as its factorization.

255395447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5939472.

The product of its digits is 756000, while the sum is 44.

The square root of 255395447 is about 15981.0965518640. The cubic root of 255395447 is about 634.4601996983.

The spelling of 255395447 in words is "two hundred fifty-five million, three hundred ninety-five thousand, four hundred forty-seven".