255863415 has 16 divisors (see below), whose sum is σ = 410696928. Its totient is φ = 136022016.

The previous prime is 255863407. The next prime is 255863423. The reversal of 255863415 is 514368552.

255863415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (255863407) and next prime (255863423).

It is not a de Polignac number, because 255863415 - 2³ = 255863407 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22554 + ... + 31943.

It is an arithmetic number, because the mean of its divisors is an integer number (25668558).

Almost surely, 2^255863415 is an apocalyptic number.

255863415 is a deficient number, since it is larger than the sum of its proper divisors (154833513).

255863415 is a wasteful number, since it uses less digits than its factorization.

255863415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54818.

The product of its digits is 144000, while the sum is 39.

The square root of 255863415 is about 15995.7311492785. The cubic root of 255863415 is about 634.8474761291.

The spelling of 255863415 in words is "two hundred fifty-five million, eight hundred sixty-three thousand, four hundred fifteen".