55678351 has 4 divisors (see below), whose sum is σ = 55723032. Its totient is φ = 55633672.

The previous prime is 55678339. The next prime is 55678361. The reversal of 55678351 is 15387655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55678351 - 2¹¹ = 55676303 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55678321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20416 + ... + 22981.

It is an arithmetic number, because the mean of its divisors is an integer number (13930758).

Almost surely, 2^55678351 is an apocalyptic number.

55678351 is a deficient number, since it is larger than the sum of its proper divisors (44681).

55678351 is a wasteful number, since it uses less digits than its factorization.

55678351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44680.

The product of its digits is 126000, while the sum is 40.

The square root of 55678351 is about 7461.7927470548. The cubic root of 55678351 is about 381.8523386968.

The spelling of 55678351 in words is "fifty-five million, six hundred seventy-eight thousand, three hundred fifty-one".