255876487 has 4 divisors (see below), whose sum is σ = 256429600. Its totient is φ = 255323376.

The previous prime is 255876479. The next prime is 255876521. The reversal of 255876487 is 784678552.

255876487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 255876487 - 2³ = 255876479 is a prime.

It is a super-2 number, since 2×255876487² = 130945553198922338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255816487) 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, 275862 + ... + 276787.

It is an arithmetic number, because the mean of its divisors is an integer number (64107400).

Almost surely, 2^255876487 is an apocalyptic number.

255876487 is a deficient number, since it is larger than the sum of its proper divisors (553113).

255876487 is an equidigital number, since it uses as much as digits as its factorization.

255876487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553112.

The product of its digits is 3763200, while the sum is 52.

The square root of 255876487 is about 15996.1397530779. The cubic root of 255876487 is about 634.8582873464.

The spelling of 255876487 in words is "two hundred fifty-five million, eight hundred seventy-six thousand, four hundred eighty-seven".