255777115 has 48 divisors (see below), whose sum is σ = 356590080. Its totient is φ = 174545280.

The previous prime is 255777113. The next prime is 255777127. The reversal of 255777115 is 511777552.

It is not a de Polignac number, because 255777115 - 2¹ = 255777113 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (85750) is a multiple of the sum of its prime divisors (175).

It is not an unprimeable number, because it can be changed into a prime (255777113) 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 47 ways as a sum of consecutive naturals, for example, 3237646 + ... + 3237724.

It is an arithmetic number, because the mean of its divisors is an integer number (7428960).

Almost surely, 2^255777115 is an apocalyptic number.

255777115 is a deficient number, since it is larger than the sum of its proper divisors (100812965).

255777115 is a wasteful number, since it uses less digits than its factorization.

255777115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 175 counting only the distinct ones).

The product of its digits is 85750, while the sum is 40.

The square root of 255777115 is about 15993.0333270459. The cubic root of 255777115 is about 634.7760923428.

The spelling of 255777115 in words is "two hundred fifty-five million, seven hundred seventy-seven thousand, one hundred fifteen".