63256555 has 16 divisors (see below), whose sum is σ = 80559360. Its totient is φ = 47579488.

The previous prime is 63256553. The next prime is 63256559. The reversal of 63256555 is 55565236.

It is not a de Polignac number, because 63256555 - 2¹ = 63256553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63256553) 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, 2124 + ... + 11446.

It is an arithmetic number, because the mean of its divisors is an integer number (5034960).

Almost surely, 2^63256555 is an apocalyptic number.

63256555 is a deficient number, since it is larger than the sum of its proper divisors (17302805).

63256555 is a wasteful number, since it uses less digits than its factorization.

63256555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9410.

The product of its digits is 135000, while the sum is 37.

The square root of 63256555 is about 7953.3989589357. The cubic root of 63256555 is about 398.4451199517.

It can be divided in two parts, 6325 and 6555, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 63256555 in words is "sixty-three million, two hundred fifty-six thousand, five hundred fifty-five".