55721314 has 8 divisors (see below), whose sum is σ = 91180368. Its totient is φ = 25327860.

The previous prime is 55721293. The next prime is 55721329. The reversal of 55721314 is 41312755.

It is a happy number.

55721314 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1266372 + ... + 1266415.

It is an arithmetic number, because the mean of its divisors is an integer number (11397546).

Almost surely, 2^55721314 is an apocalyptic number.

55721314 is a deficient number, since it is larger than the sum of its proper divisors (35459054).

55721314 is a wasteful number, since it uses less digits than its factorization.

55721314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532800.

The product of its digits is 4200, while the sum is 28.

The square root of 55721314 is about 7464.6710577225. The cubic root of 55721314 is about 381.9505294890.

It can be divided in two parts, 5572 and 1314, that added together give a palindrome (6886).

The spelling of 55721314 in words is "fifty-five million, seven hundred twenty-one thousand, three hundred fourteen".