255456445 has 16 divisors (see below), whose sum is σ = 315170352. Its totient is φ = 198653440.

The previous prime is 255456437. The next prime is 255456451. The reversal of 255456445 is 544654552.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 23290276 + 232166169 = 4826^2 + 15237^2 .

It is not a de Polignac number, because 255456445 - 2³ = 255456437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255456398 and 255456407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57939 + ... + 62191.

It is an arithmetic number, because the mean of its divisors is an integer number (19698147).

Almost surely, 2^255456445 is an apocalyptic number.

It is an amenable number.

255456445 is a deficient number, since it is larger than the sum of its proper divisors (59713907).

255456445 is a wasteful number, since it uses less digits than its factorization.

255456445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592.

The product of its digits is 480000, while the sum is 40.

The square root of 255456445 is about 15983.0048801845. The cubic root of 255456445 is about 634.5107066319.

The spelling of 255456445 in words is "two hundred fifty-five million, four hundred fifty-six thousand, four hundred forty-five".