3218396553 has 12 divisors (see below), whose sum is σ = 4672158400. Its totient is φ = 2134814616.

The previous prime is 3218396543. The next prime is 3218396569. The reversal of 3218396553 is 3556938123.

It is a happy number.

3218396553 is a `hidden beast` number, since 3 + 2 + 1 + 8 + 3 + 96 + 553 = 666.

It is not a de Polignac number, because 3218396553 - 2²⁵ = 3184842121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3218396499 and 3218396508.

It is not an unprimeable number, because it can be changed into a prime (3218396543) 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 11 ways as a sum of consecutive naturals, for example, 896701 + ... + 900282.

Almost surely, 2^3218396553 is an apocalyptic number.

It is an amenable number.

3218396553 is a deficient number, since it is larger than the sum of its proper divisors (1453761847).

3218396553 is a wasteful number, since it uses less digits than its factorization.

3218396553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797188 (or 1797185 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 3218396553 is about 56730.9135568959. The cubic root of 3218396553 is about 1476.4311002519.

The spelling of 3218396553 in words is "three billion, two hundred eighteen million, three hundred ninety-six thousand, five hundred fifty-three".