255505047 has 16 divisors (see below), whose sum is σ = 392916480. Its totient is φ = 144662112.

The previous prime is 255505043. The next prime is 255505049. The reversal of 255505047 is 740505552.

It is not a de Polignac number, because 255505047 - 2² = 255505043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255504999 and 255505017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255505043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53523 + ... + 58100.

It is an arithmetic number, because the mean of its divisors is an integer number (24557280).

Almost surely, 2^255505047 is an apocalyptic number.

255505047 is a deficient number, since it is larger than the sum of its proper divisors (137411433).

255505047 is a wasteful number, since it uses less digits than its factorization.

255505047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111742.

The product of its (nonzero) digits is 35000, while the sum is 33.

The square root of 255505047 is about 15984.5252353644. The cubic root of 255505047 is about 634.5509438027.

The spelling of 255505047 in words is "two hundred fifty-five million, five hundred five thousand, forty-seven".