13055978 has 16 divisors (see below), whose sum is σ = 21205800. Its totient is φ = 5992896.

The previous prime is 13055969. The next prime is 13055993. The reversal of 13055978 is 87955031.

It can be written as a sum of positive squares in 4 ways, for example, as 13053769 + 2209 = 3613^2 + 47^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3848 + ... + 6396.

Almost surely, 2^13055978 is an apocalyptic number.

13055978 is a deficient number, since it is larger than the sum of its proper divisors (8149822).

13055978 is a wasteful number, since it uses less digits than its factorization.

13055978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 13055978 is about 3613.3056887011. The cubic root of 13055978 is about 235.4704804154.

The spelling of 13055978 in words is "thirteen million, fifty-five thousand, nine hundred seventy-eight".