255944605 has 32 divisors (see below), whose sum is σ = 375425280. Its totient is φ = 163507200.

The previous prime is 255944599. The next prime is 255944627. The reversal of 255944605 is 506449552.

It is not a de Polignac number, because 255944605 - 2¹⁵ = 255911837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57966 + ... + 62224.

It is an arithmetic number, because the mean of its divisors is an integer number (11732040).

Almost surely, 2^255944605 is an apocalyptic number.

It is an amenable number.

255944605 is a deficient number, since it is larger than the sum of its proper divisors (119480675).

255944605 is a wasteful number, since it uses less digits than its factorization.

255944605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4389.

The product of its (nonzero) digits is 216000, while the sum is 40.

The square root of 255944605 is about 15998.2688125934. The cubic root of 255944605 is about 634.9146184828.

The spelling of 255944605 in words is "two hundred fifty-five million, nine hundred forty-four thousand, six hundred five".