1153255511 has 2 divisors, whose sum is σ = 1153255512. Its totient is φ = 1153255510.

The previous prime is 1153255423. The next prime is 1153255603. The reversal of 1153255511 is 1155523511.

It is a weak prime.

It is an emirp because it is prime and its reverse (1155523511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1153255511 is a prime.

It is a super-2 number, since 2×1153255511² = 2659996547303742242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153255111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576627755 + 576627756.

It is an arithmetic number, because the mean of its divisors is an integer number (576627756).

Almost surely, 2^1153255511 is an apocalyptic number.

1153255511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153255511 is an equidigital number, since it uses as much as digits as its factorization.

1153255511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3750, while the sum is 29.

The square root of 1153255511 is about 33959.6158841645. The cubic root of 1153255511 is about 1048.6772492382.

The spelling of 1153255511 in words is "one billion, one hundred fifty-three million, two hundred fifty-five thousand, five hundred eleven".