255423839 has 16 divisors (see below), whose sum is σ = 287362080. Its totient is φ = 224991360.

The previous prime is 255423823. The next prime is 255423869. The reversal of 255423839 is 938324552.

255423839 = 102² + 103² + ... + 915².

It is not a de Polignac number, because 255423839 - 2⁴ = 255423823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255423796 and 255423805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255423869) 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 15 ways as a sum of consecutive naturals, for example, 108317 + ... + 110649.

It is an arithmetic number, because the mean of its divisors is an integer number (17960130).

Almost surely, 2^255423839 is an apocalyptic number.

255423839 is a deficient number, since it is larger than the sum of its proper divisors (31938241).

255423839 is a wasteful number, since it uses less digits than its factorization.

255423839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650.

The product of its digits is 259200, while the sum is 41.

The square root of 255423839 is about 15981.9848266728. The cubic root of 255423839 is about 634.4837095491.

The spelling of 255423839 in words is "two hundred fifty-five million, four hundred twenty-three thousand, eight hundred thirty-nine".