55843378 has 4 divisors (see below), whose sum is σ = 83765070. Its totient is φ = 27921688.

The previous prime is 55843373. The next prime is 55843409. The reversal of 55843378 is 87334855.

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

It can be written as a sum of positive squares in only one way, i.e., 54420129 + 1423249 = 7377^2 + 1193^2 .

It is not an unprimeable number, because it can be changed into a prime (55843373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13960843 + ... + 13960846.

Almost surely, 2^55843378 is an apocalyptic number.

55843378 is a deficient number, since it is larger than the sum of its proper divisors (27921692).

55843378 is a wasteful number, since it uses less digits than its factorization.

55843378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27921691.

The product of its digits is 403200, while the sum is 43.

The square root of 55843378 is about 7472.8426987325. The cubic root of 55843378 is about 382.2292283897.

The spelling of 55843378 in words is "fifty-five million, eight hundred forty-three thousand, three hundred seventy-eight".