255387879 has 12 divisors (see below), whose sum is σ = 377473096. Its totient is φ = 166298832.

The previous prime is 255387871. The next prime is 255387887. The reversal of 255387879 is 978783552.

255387879 is a `hidden beast` number, since 2 + 553 + 8 + 7 + 87 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (255387871) and next prime (255387887).

It is not a de Polignac number, because 255387879 - 2³ = 255387871 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 (255387871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 329572 + ... + 330345.

Almost surely, 2^255387879 is an apocalyptic number.

255387879 is a deficient number, since it is larger than the sum of its proper divisors (122085217).

255387879 is a wasteful number, since it uses less digits than its factorization.

255387879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659966 (or 659963 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The square root of 255387879 is about 15980.8597703628. The cubic root of 255387879 is about 634.4539327604.

The spelling of 255387879 in words is "two hundred fifty-five million, three hundred eighty-seven thousand, eight hundred seventy-nine".