1632565489 has 2 divisors, whose sum is σ = 1632565490. Its totient is φ = 1632565488.

The previous prime is 1632565463. The next prime is 1632565499. The reversal of 1632565489 is 9845652361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 836366400 + 796199089 = 28920^2 + 28217^2 .

It is a cyclic number.

It is not a de Polignac number, because 1632565489 - 2⁹ = 1632564977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1632565499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 816282744 + 816282745.

It is an arithmetic number, because the mean of its divisors is an integer number (816282745).

Almost surely, 2^1632565489 is an apocalyptic number.

It is an amenable number.

1632565489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1632565489 is an equidigital number, since it uses as much as digits as its factorization.

1632565489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 49.

The square root of 1632565489 is about 40405.0181165657. The cubic root of 1632565489 is about 1177.4890321927.

It can be divided in two parts, 163 and 2565489, that added together give a palindrome (2565652).

The spelling of 1632565489 in words is "one billion, six hundred thirty-two million, five hundred sixty-five thousand, four hundred eighty-nine".