255561459 has 16 divisors (see below), whose sum is σ = 361906560. Its totient is φ = 159857280.

The previous prime is 255561443. The next prime is 255561463. The reversal of 255561459 is 954165552.

It is not a de Polignac number, because 255561459 - 2⁴ = 255561443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255561459.

It is not an unprimeable number, because it can be changed into a prime (255561409) 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, 9312 + ... + 24450.

It is an arithmetic number, because the mean of its divisors is an integer number (22619160).

Almost surely, 2^255561459 is an apocalyptic number.

255561459 is a deficient number, since it is larger than the sum of its proper divisors (106345101).

255561459 is a wasteful number, since it uses less digits than its factorization.

255561459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15490.

The product of its digits is 270000, while the sum is 42.

The square root of 255561459 is about 15986.2897196316. The cubic root of 255561459 is about 634.5976404063.

The spelling of 255561459 in words is "two hundred fifty-five million, five hundred sixty-one thousand, four hundred fifty-nine".