1089330025 has 81 divisors (see below), whose sum is σ = 1683631173. Its totient is φ = 697065600.

The previous prime is 1089330023. The next prime is 1089330031. The reversal of 1089330025 is 5200339801.

It is a happy number.

The square root of 1089330025 is 33005.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 458516569 + 630813456 = 21413^2 + 25116^2 .

It is not a de Polignac number, because 1089330025 - 2¹ = 1089330023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1089330023) 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 in 80 ways as a sum of consecutive naturals, for example, 26569005 + ... + 26569045.

Almost surely, 2^1089330025 is an apocalyptic number.

1089330025 is the 33005-th square number.

1089330025 is the 16503-rd centered octagonal number.

It is an amenable number.

1089330025 is a deficient number, since it is larger than the sum of its proper divisors (594301148).

1089330025 is an equidigital number, since it uses as much as digits as its factorization.

1089330025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The cubic root of 1089330025 is about 1028.9315671707.

Adding to 1089330025 its reverse (5200339801), we get a palindrome (6289669826).

The spelling of 1089330025 in words is "one billion, eighty-nine million, three hundred thirty thousand, twenty-five".