5278553994 has 32 divisors (see below), whose sum is σ = 12068928000. Its totient is φ = 1507700592.

The previous prime is 5278553953. The next prime is 5278554019. The reversal of 5278553994 is 4993558725.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135757 + ... + 170255.

It is an arithmetic number, because the mean of its divisors is an integer number (377154000).

Almost surely, 2^5278553994 is an apocalyptic number.

5278553994 is an abundant number, since it is smaller than the sum of its proper divisors (6790374006).

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

5278553994 is a wasteful number, since it uses less digits than its factorization.

5278553994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38154.

The product of its digits is 13608000, while the sum is 57.

The square root of 5278553994 is about 72653.6578156943. The cubic root of 5278553994 is about 1741.1585618772.

The spelling of 5278553994 in words is "five billion, two hundred seventy-eight million, five hundred fifty-three thousand, nine hundred ninety-four".