55178214 has 48 divisors (see below), whose sum is σ = 138258288. Its totient is φ = 14551488.

The previous prime is 55178197. The next prime is 55178281. The reversal of 55178214 is 41287155.

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 in 23 ways as a sum of consecutive naturals, for example, 3397 + ... + 11040.

It is an arithmetic number, because the mean of its divisors is an integer number (2880381).

Almost surely, 2^55178214 is an apocalyptic number.

55178214 is an abundant number, since it is smaller than the sum of its proper divisors (83080074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55178214 is a wasteful number, since it uses less digits than its factorization.

55178214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14469 (or 14462 counting only the distinct ones).

The product of its digits is 11200, while the sum is 33.

The square root of 55178214 is about 7428.2039551967. The cubic root of 55178214 is about 380.7055543602.

It can be divided in two parts, 5517 and 8214, that added together give a palindrome (13731).

The spelling of 55178214 in words is "fifty-five million, one hundred seventy-eight thousand, two hundred fourteen".