2556607198 has 8 divisors (see below), whose sum is σ = 3854989440. Its totient is φ = 1271610720.

The previous prime is 2556607177. The next prime is 2556607199. The reversal of 2556607198 is 8917066552.

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

It is a super-2 number, since 2×2556607198² = 13072480729730822408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556607199) 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 3 ways as a sum of consecutive naturals, for example, 3345963 + ... + 3346726.

It is an arithmetic number, because the mean of its divisors is an integer number (481873680).

Almost surely, 2^2556607198 is an apocalyptic number.

2556607198 is a deficient number, since it is larger than the sum of its proper divisors (1298382242).

2556607198 is a wasteful number, since it uses less digits than its factorization.

2556607198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6692882.

The product of its (nonzero) digits is 907200, while the sum is 49.

The square root of 2556607198 is about 50562.9033778718. The cubic root of 2556607198 is about 1367.3761558118.

The spelling of 2556607198 in words is "two billion, five hundred fifty-six million, six hundred seven thousand, one hundred ninety-eight".