6321492553 has 2 divisors, whose sum is σ = 6321492554. Its totient is φ = 6321492552.

The previous prime is 6321492533. The next prime is 6321492557. The reversal of 6321492553 is 3552941236.

6321492553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4934079049 + 1387413504 = 70243^2 + 37248^2 .

It is a cyclic number.

It is not a de Polignac number, because 6321492553 - 2²⁹ = 5784621641 is a prime.

It is a super-2 number, since 2×6321492553² = 79922536195268915618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6321492557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3160746276 + 3160746277.

It is an arithmetic number, because the mean of its divisors is an integer number (3160746277).

Almost surely, 2^6321492553 is an apocalyptic number.

It is an amenable number.

6321492553 is a deficient number, since it is larger than the sum of its proper divisors (1).

6321492553 is an equidigital number, since it uses as much as digits as its factorization.

6321492553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 40.

The square root of 6321492553 is about 79507.8144146851. The cubic root of 6321492553 is about 1849.0126265627.

The spelling of 6321492553 in words is "six billion, three hundred twenty-one million, four hundred ninety-two thousand, five hundred fifty-three".