255842871 has 8 divisors (see below), whose sum is σ = 344957040. Its totient is φ = 168645312.

The previous prime is 255842863. The next prime is 255842879. The reversal of 255842871 is 178248552.

It is an interprime number because it is at equal distance from previous prime (255842863) and next prime (255842879).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255842871 - 2³ = 255842863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255842879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478840 + ... + 479373.

It is an arithmetic number, because the mean of its divisors is an integer number (43119630).

Almost surely, 2^255842871 is an apocalyptic number.

255842871 is a deficient number, since it is larger than the sum of its proper divisors (89114169).

255842871 is an equidigital number, since it uses as much as digits as its factorization.

255842871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958305.

The product of its digits is 179200, while the sum is 42.

The square root of 255842871 is about 15995.0889650542. The cubic root of 255842871 is about 634.8304844390.

The spelling of 255842871 in words is "two hundred fifty-five million, eight hundred forty-two thousand, eight hundred seventy-one".