1155500033 has 2 divisors, whose sum is σ = 1155500034. Its totient is φ = 1155500032.

The previous prime is 1155499997. The next prime is 1155500039. The reversal of 1155500033 is 3300055511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 839087089 + 316412944 = 28967^2 + 17788^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155500033 - 2⁸ = 1155499777 is a prime.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1155499981 and 1155500008.

It is not a weakly prime, because it can be changed into another prime (1155500039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577750016 + 577750017.

It is an arithmetic number, because the mean of its divisors is an integer number (577750017).

Almost surely, 2^1155500033 is an apocalyptic number.

It is an amenable number.

1155500033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155500033 is an equidigital number, since it uses as much as digits as its factorization.

1155500033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 1155500033 is about 33992.6467489662. The cubic root of 1155500033 is about 1049.3571372509.

Adding to 1155500033 its reverse (3300055511), we get a palindrome (4455555544).

The spelling of 1155500033 in words is "one billion, one hundred fifty-five million, five hundred thousand, thirty-three".