255155439 has 32 divisors (see below), whose sum is σ = 425258496. Its totient is φ = 132203520.

The previous prime is 255155437. The next prime is 255155477. The reversal of 255155439 is 934551552.

It is not a de Polignac number, because 255155439 - 2¹ = 255155437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255155397 and 255155406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255155437) 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 31 ways as a sum of consecutive naturals, for example, 104359 + ... + 106775.

It is an arithmetic number, because the mean of its divisors is an integer number (13289328).

Almost surely, 2^255155439 is an apocalyptic number.

255155439 is a deficient number, since it is larger than the sum of its proper divisors (170103057).

255155439 is a wasteful number, since it uses less digits than its factorization.

255155439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895.

The product of its digits is 135000, while the sum is 39.

The square root of 255155439 is about 15973.5856650910. The cubic root of 255155439 is about 634.2613926449.

The spelling of 255155439 in words is "two hundred fifty-five million, one hundred fifty-five thousand, four hundred thirty-nine".