255642071 has 8 divisors (see below), whose sum is σ = 262262784. Its totient is φ = 249070680.

The previous prime is 255642067. The next prime is 255642077. The reversal of 255642071 is 170246552.

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

It is a cyclic number.

It is not a de Polignac number, because 255642071 - 2² = 255642067 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 (255642077) 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, 1715 + ... + 22676.

It is an arithmetic number, because the mean of its divisors is an integer number (32782848).

Almost surely, 2^255642071 is an apocalyptic number.

255642071 is a deficient number, since it is larger than the sum of its proper divisors (6620713).

255642071 is a wasteful number, since it uses less digits than its factorization.

255642071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24661.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 255642071 is about 15988.8108063108. The cubic root of 255642071 is about 634.6643573093.

The spelling of 255642071 in words is "two hundred fifty-five million, six hundred forty-two thousand, seventy-one".