55378486 has 8 divisors (see below), whose sum is σ = 87954120. Its totient is φ = 26060448.

The previous prime is 55378471. The next prime is 55378489. The reversal of 55378486 is 68487355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55378489) 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 in 3 ways as a sum of consecutive naturals, for example, 814356 + ... + 814423.

It is an arithmetic number, because the mean of its divisors is an integer number (10994265).

Almost surely, 2^55378486 is an apocalyptic number.

55378486 is a deficient number, since it is larger than the sum of its proper divisors (32575634).

55378486 is a wasteful number, since it uses less digits than its factorization.

55378486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628798.

The product of its digits is 806400, while the sum is 46.

The square root of 55378486 is about 7441.6722583032. The cubic root of 55378486 is about 381.1655946445.

The spelling of 55378486 in words is "fifty-five million, three hundred seventy-eight thousand, four hundred eighty-six".