255251775 has 24 divisors (see below), whose sum is σ = 422559760. Its totient is φ = 135959040.

The previous prime is 255251767. The next prime is 255251779. The reversal of 255251775 is 577152552.

It is not a de Polignac number, because 255251775 - 2³ = 255251767 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255251779) 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 23 ways as a sum of consecutive naturals, for example, 73989 + ... + 77361.

Almost surely, 2^255251775 is an apocalyptic number.

255251775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

255251775 is a deficient number, since it is larger than the sum of its proper divisors (167307985).

255251775 is a wasteful number, since it uses less digits than its factorization.

255251775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395 (or 4390 counting only the distinct ones).

The product of its digits is 122500, while the sum is 39.

The square root of 255251775 is about 15976.6008587559. The cubic root of 255251775 is about 634.3412061074.

The spelling of 255251775 in words is "two hundred fifty-five million, two hundred fifty-one thousand, seven hundred seventy-five".