3211398055 has 4 divisors (see below), whose sum is σ = 3853677672. Its totient is φ = 2569118440.

The previous prime is 3211398053. The next prime is 3211398083. The reversal of 3211398055 is 5508931123.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5508931123 = 5867 ⋅938969.

It is not a de Polignac number, because 3211398055 - 2¹ = 3211398053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3211398053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321139801 + ... + 321139810.

It is an arithmetic number, because the mean of its divisors is an integer number (963419418).

Almost surely, 2^3211398055 is an apocalyptic number.

3211398055 is a deficient number, since it is larger than the sum of its proper divisors (642279617).

3211398055 is an equidigital number, since it uses as much as digits as its factorization.

3211398055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642279616.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 3211398055 is about 56669.1984679508. The cubic root of 3211398055 is about 1475.3601426439.

The spelling of 3211398055 in words is "three billion, two hundred eleven million, three hundred ninety-eight thousand, fifty-five".