56278594198 has 4 divisors (see below), whose sum is σ = 84417891300. Its totient is φ = 28139297098.

The previous prime is 56278594147. The next prime is 56278594201. The reversal of 56278594198 is 89149587265.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89149587265 = 5 ⋅17829917453.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 14069648548 + ... + 14069648551.

It is an arithmetic number, because the mean of its divisors is an integer number (21104472825).

Almost surely, 2^56278594198 is an apocalyptic number.

56278594198 is a deficient number, since it is larger than the sum of its proper divisors (28139297102).

56278594198 is a wasteful number, since it uses less digits than its factorization.

56278594198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28139297101.

The product of its digits is 43545600, while the sum is 64.

The spelling of 56278594198 in words is "fifty-six billion, two hundred seventy-eight million, five hundred ninety-four thousand, one hundred ninety-eight".