255246691 has 8 divisors (see below), whose sum is σ = 292149344. Its totient is φ = 218453760.

The previous prime is 255246679. The next prime is 255246701. The reversal of 255246691 is 196642552.

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

It is not a de Polignac number, because 255246691 - 2¹¹ = 255244643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255246611) 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, 22380 + ... + 31801.

It is an arithmetic number, because the mean of its divisors is an integer number (36518668).

Almost surely, 2^255246691 is an apocalyptic number.

255246691 is a deficient number, since it is larger than the sum of its proper divisors (36902653).

255246691 is an equidigital number, since it uses as much as digits as its factorization.

255246691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54861.

The product of its digits is 129600, while the sum is 40.

The square root of 255246691 is about 15976.4417502772. The cubic root of 255246691 is about 634.3369945636.

The spelling of 255246691 in words is "two hundred fifty-five million, two hundred forty-six thousand, six hundred ninety-one".