255656005 has 16 divisors (see below), whose sum is σ = 335016000. Its totient is φ = 185743360.

The previous prime is 255656003. The next prime is 255656041. The reversal of 255656005 is 500656552.

It is a happy number.

It is not a de Polignac number, because 255656005 - 2¹ = 255656003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255656003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75846 + ... + 79144.

It is an arithmetic number, because the mean of its divisors is an integer number (20938500).

Almost surely, 2^255656005 is an apocalyptic number.

It is an amenable number.

255656005 is a deficient number, since it is larger than the sum of its proper divisors (79359995).

255656005 is a wasteful number, since it uses less digits than its factorization.

255656005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4724.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 255656005 is about 15989.2465425986. The cubic root of 255656005 is about 634.6758880828.

The spelling of 255656005 in words is "two hundred fifty-five million, six hundred fifty-six thousand, five".