1632253321 has 2 divisors, whose sum is σ = 1632253322. Its totient is φ = 1632253320.

The previous prime is 1632253277. The next prime is 1632253327. The reversal of 1632253321 is 1233522361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1167247225 + 465006096 = 34165^2 + 21564^2 .

It is a cyclic number.

It is not a de Polignac number, because 1632253321 - 2¹³ = 1632245129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1632253321.

It is not a weakly prime, because it can be changed into another prime (1632253327) by changing a digit.

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 as a sum of consecutive naturals, namely, 816126660 + 816126661.

It is an arithmetic number, because the mean of its divisors is an integer number (816126661).

Almost surely, 2^1632253321 is an apocalyptic number.

It is an amenable number.

1632253321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1632253321 is an equidigital number, since it uses as much as digits as its factorization.

1632253321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 28.

The square root of 1632253321 is about 40401.1549463626. The cubic root of 1632253321 is about 1177.4139769439.

Adding to 1632253321 its reverse (1233522361), we get a palindrome (2865775682).

The spelling of 1632253321 in words is "one billion, six hundred thirty-two million, two hundred fifty-three thousand, three hundred twenty-one".