2556148218 has 32 divisors (see below), whose sum is σ = 5695401600. Its totient is φ = 759385536.

The previous prime is 2556148213. The next prime is 2556148279. The reversal of 2556148218 is 8128416552.

It is a self number, because there is not a number n which added to its sum of digits gives 2556148218.

It is not an unprimeable number, because it can be changed into a prime (2556148213) 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, 562758 + ... + 567281.

It is an arithmetic number, because the mean of its divisors is an integer number (177981300).

Almost surely, 2^2556148218 is an apocalyptic number.

2556148218 is an abundant number, since it is smaller than the sum of its proper divisors (3139253382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2556148218 is a wasteful number, since it uses less digits than its factorization.

2556148218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130086.

The product of its digits is 153600, while the sum is 42.

The square root of 2556148218 is about 50558.3644711733. The cubic root of 2556148218 is about 1367.2943239385.

The spelling of 2556148218 in words is "two billion, five hundred fifty-six million, one hundred forty-eight thousand, two hundred eighteen".