255571261 has 8 divisors (see below), whose sum is σ = 293479200. Its totient is φ = 220109040.

The previous prime is 255571259. The next prime is 255571271. The reversal of 255571261 is 162175552.

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 255571261 - 2¹ = 255571259 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 (255571201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611206 + ... + 611623.

It is an arithmetic number, because the mean of its divisors is an integer number (36684900).

Almost surely, 2^255571261 is an apocalyptic number.

It is an amenable number.

255571261 is a deficient number, since it is larger than the sum of its proper divisors (37907939).

255571261 is a wasteful number, since it uses less digits than its factorization.

255571261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222859.

The product of its digits is 21000, while the sum is 34.

The square root of 255571261 is about 15986.5962918940. The cubic root of 255571261 is about 634.6057535840.

The spelling of 255571261 in words is "two hundred fifty-five million, five hundred seventy-one thousand, two hundred sixty-one".