255780255 has 16 divisors (see below), whose sum is σ = 409743360. Its totient is φ = 136251168.

The previous prime is 255780253. The next prime is 255780257. The reversal of 255780255 is 552087552.

It is an interprime number because it is at equal distance from previous prime (255780253) and next prime (255780257).

It is not a de Polignac number, because 255780255 - 2¹ = 255780253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255780253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3066 + ... + 22824.

It is an arithmetic number, because the mean of its divisors is an integer number (25608960).

Almost surely, 2^255780255 is an apocalyptic number.

255780255 is a deficient number, since it is larger than the sum of its proper divisors (153963105).

255780255 is a wasteful number, since it uses less digits than its factorization.

255780255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20630.

The product of its (nonzero) digits is 140000, while the sum is 39.

The square root of 255780255 is about 15993.1314944885. The cubic root of 255780255 is about 634.7786899022.

The spelling of 255780255 in words is "two hundred fifty-five million, seven hundred eighty thousand, two hundred fifty-five".