255545117 has 8 divisors (see below), whose sum is σ = 272784960. Its totient is φ = 238684320.

The previous prime is 255545113. The next prime is 255545119. The reversal of 255545117 is 711545552.

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 255545117 - 2² = 255545113 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 (255545113) 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, 93368 + ... + 96065.

It is an arithmetic number, because the mean of its divisors is an integer number (34098120).

Almost surely, 2^255545117 is an apocalyptic number.

It is an amenable number.

255545117 is a deficient number, since it is larger than the sum of its proper divisors (17239843).

255545117 is a wasteful number, since it uses less digits than its factorization.

255545117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189523.

The product of its digits is 35000, while the sum is 35.

The square root of 255545117 is about 15985.7785859807. The cubic root of 255545117 is about 634.5841135679.

The spelling of 255545117 in words is "two hundred fifty-five million, five hundred forty-five thousand, one hundred seventeen".