321441055 has 16 divisors (see below), whose sum is σ = 415789920. Its totient is φ = 237149568.

The previous prime is 321441041. The next prime is 321441059. The reversal of 321441055 is 550144123.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 321441055 - 2⁹ = 321440543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321441059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107004 + ... + 109966.

It is an arithmetic number, because the mean of its divisors is an integer number (25986870).

Almost surely, 2^321441055 is an apocalyptic number.

321441055 is a deficient number, since it is larger than the sum of its proper divisors (94348865).

321441055 is a wasteful number, since it uses less digits than its factorization.

321441055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4650.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 321441055 is about 17928.7772868090. Note that the first 3 decimals coincide. The cubic root of 321441055 is about 685.0155785258.

Adding to 321441055 its reverse (550144123), we get a palindrome (871585178).

The spelling of 321441055 in words is "three hundred twenty-one million, four hundred forty-one thousand, fifty-five".