255541655 has 4 divisors (see below), whose sum is σ = 306649992. Its totient is φ = 204433320.

The previous prime is 255541633. The next prime is 255541669. The reversal of 255541655 is 556145552.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 255541655 - 2¹² = 255537559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25554161 + ... + 25554170.

It is an arithmetic number, because the mean of its divisors is an integer number (76662498).

Almost surely, 2^255541655 is an apocalyptic number.

255541655 is a deficient number, since it is larger than the sum of its proper divisors (51108337).

255541655 is an equidigital number, since it uses as much as digits as its factorization.

255541655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51108336.

The product of its digits is 150000, while the sum is 38.

The square root of 255541655 is about 15985.6703018672. The cubic root of 255541655 is about 634.5812478768.

The spelling of 255541655 in words is "two hundred fifty-five million, five hundred forty-one thousand, six hundred fifty-five".