55214404 has 24 divisors (see below), whose sum is σ = 111279168. Its totient is φ = 23481120.

The previous prime is 55214389. The next prime is 55214407. The reversal of 55214404 is 40441255.

It is a happy number.

55214404 is nontrivially palindromic in base 13.

It is not an unprimeable number, because it can be changed into a prime (55214407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3859 + ... + 11194.

It is an arithmetic number, because the mean of its divisors is an integer number (4636632).

Almost surely, 2^55214404 is an apocalyptic number.

It is an amenable number.

55214404 is an abundant number, since it is smaller than the sum of its proper divisors (56064764).

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

55214404 is a wasteful number, since it uses less digits than its factorization.

55214404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15195 (or 15193 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 55214404 is about 7430.6395417891. The cubic root of 55214404 is about 380.7887678966.

Adding to 55214404 its reverse (40441255), we get a palindrome (95655659).

The spelling of 55214404 in words is "fifty-five million, two hundred fourteen thousand, four hundred four".