255768463 has 4 divisors (see below), whose sum is σ = 255984048. Its totient is φ = 255552880.

The previous prime is 255768433. The next prime is 255768493. The reversal of 255768463 is 364867552.

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

It is an interprime number because it is at equal distance from previous prime (255768433) and next prime (255768493).

It is a cyclic number.

It is not a de Polignac number, because 255768463 - 2⁵ = 255768431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255768433) 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, 106003 + ... + 108388.

It is an arithmetic number, because the mean of its divisors is an integer number (63996012).

Almost surely, 2^255768463 is an apocalyptic number.

255768463 is a deficient number, since it is larger than the sum of its proper divisors (215585).

255768463 is a wasteful number, since it uses less digits than its factorization.

255768463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215584.

The product of its digits is 1209600, while the sum is 46.

The square root of 255768463 is about 15992.7628319812. The cubic root of 255768463 is about 634.7689348811.

The spelling of 255768463 in words is "two hundred fifty-five million, seven hundred sixty-eight thousand, four hundred sixty-three".