2556157219 has 8 divisors (see below), whose sum is σ = 3186897408. Its totient is φ = 1991810760.

The previous prime is 2556157207. The next prime is 2556157243. The reversal of 2556157219 is 9127516552.

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

It is a cyclic number.

It is not a de Polignac number, because 2556157219 - 2⁷ = 2556157091 is a prime.

It is a super-2 number, since 2×2556157219² = 13067879456491627922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2556157619) 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 7 ways as a sum of consecutive naturals, for example, 16598347 + ... + 16598500.

It is an arithmetic number, because the mean of its divisors is an integer number (398362176).

Almost surely, 2^2556157219 is an apocalyptic number.

2556157219 is a deficient number, since it is larger than the sum of its proper divisors (630740189).

2556157219 is a wasteful number, since it uses less digits than its factorization.

2556157219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33196865.

The product of its digits is 189000, while the sum is 43.

The square root of 2556157219 is about 50558.4534870283. The cubic root of 2556157219 is about 1367.2959288274.

The spelling of 2556157219 in words is "two billion, five hundred fifty-six million, one hundred fifty-seven thousand, two hundred nineteen".