55318412 has 6 divisors (see below), whose sum is σ = 96807228. Its totient is φ = 27659204.

The previous prime is 55318411. The next prime is 55318423. The reversal of 55318412 is 21481355.

It is not an unprimeable number, because it can be changed into a prime (55318411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6914798 + ... + 6914805.

It is an arithmetic number, because the mean of its divisors is an integer number (16134538).

Almost surely, 2^55318412 is an apocalyptic number.

It is an amenable number.

55318412 is a deficient number, since it is larger than the sum of its proper divisors (41488816).

55318412 is a wasteful number, since it uses less digits than its factorization.

55318412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13829607 (or 13829605 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 55318412 is about 7437.6348391138. The cubic root of 55318412 is about 381.0277166317.

Adding to 55318412 its reverse (21481355), we get a palindrome (76799767).

The spelling of 55318412 in words is "fifty-five million, three hundred eighteen thousand, four hundred twelve".