255005406770 has 8 divisors (see below), whose sum is σ = 459009732204. Its totient is φ = 102002162704.

The previous prime is 255005406763. The next prime is 255005406779. The reversal of 255005406770 is 77604500552.

It can be written as a sum of positive squares in 2 ways, for example, as 227512782289 + 27492624481 = 476983^2 + 165809^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255005406779) 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, 12750270329 + ... + 12750270348.

Almost surely, 2^255005406770 is an apocalyptic number.

255005406770 is a deficient number, since it is larger than the sum of its proper divisors (204004325434).

255005406770 is a wasteful number, since it uses less digits than its factorization.

255005406770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25500540684.

The product of its (nonzero) digits is 294000, while the sum is 41.

The spelling of 255005406770 in words is "two hundred fifty-five billion, five million, four hundred six thousand, seven hundred seventy".