1155232025 has 12 divisors (see below), whose sum is σ = 1516752252. Its totient is φ = 869821440.

The previous prime is 1155232021. The next prime is 1155232033. The reversal of 1155232025 is 5202325511.

It can be written as a sum of positive squares in 6 ways, for example, as 9815689 + 1145416336 = 3133^2 + 33844^2 .

It is not a de Polignac number, because 1155232025 - 2² = 1155232021 is a prime.

It is a super-2 number, since 2×1155232025² = 2669122063171201250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1155231985 and 1155232003.

It is not an unprimeable number, because it can be changed into a prime (1155232021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1358672 + ... + 1359521.

It is an arithmetic number, because the mean of its divisors is an integer number (126396021).

Almost surely, 2^1155232025 is an apocalyptic number.

It is an amenable number.

1155232025 is a deficient number, since it is larger than the sum of its proper divisors (361520227).

1155232025 is a wasteful number, since it uses less digits than its factorization.

1155232025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718220 (or 2718215 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1155232025 is about 33988.7043736592. The cubic root of 1155232025 is about 1049.2760012792.

Adding to 1155232025 its reverse (5202325511), we get a palindrome (6357557536).

The spelling of 1155232025 in words is "one billion, one hundred fifty-five million, two hundred thirty-two thousand, twenty-five".