55678838 has 4 divisors (see below), whose sum is σ = 83518260. Its totient is φ = 27839418.

The previous prime is 55678823. The next prime is 55678849. The reversal of 55678838 is 83887655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83887655 = 5 ⋅16777531.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13919708 + ... + 13919711.

It is an arithmetic number, because the mean of its divisors is an integer number (20879565).

Almost surely, 2^55678838 is an apocalyptic number.

55678838 is a deficient number, since it is larger than the sum of its proper divisors (27839422).

55678838 is a wasteful number, since it uses less digits than its factorization.

55678838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27839421.

The product of its digits is 1612800, while the sum is 50.

The square root of 55678838 is about 7461.8253798920. The cubic root of 55678838 is about 381.8534520054.

The spelling of 55678838 in words is "fifty-five million, six hundred seventy-eight thousand, eight hundred thirty-eight".