2556215133 has 8 divisors (see below), whose sum is σ = 3408525888. Its totient is φ = 1704023904.

The previous prime is 2556215119. The next prime is 2556215203. The reversal of 2556215133 is 3315126552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2556215133 - 2⁹ = 2556214621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2556215094 and 2556215103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556215833) 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 7 ways as a sum of consecutive naturals, for example, 52360 + ... + 88622.

It is an arithmetic number, because the mean of its divisors is an integer number (426065736).

Almost surely, 2^2556215133 is an apocalyptic number.

It is an amenable number.

2556215133 is a deficient number, since it is larger than the sum of its proper divisors (852310755).

2556215133 is a wasteful number, since it uses less digits than its factorization.

2556215133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59763.

The product of its digits is 27000, while the sum is 33.

The square root of 2556215133 is about 50559.0262267777. The cubic root of 2556215133 is about 1367.3062548717.

The spelling of 2556215133 in words is "two billion, five hundred fifty-six million, two hundred fifteen thousand, one hundred thirty-three".