1155333555 has 48 divisors (see below), whose sum is σ = 2058061824. Its totient is φ = 599273280.

The previous prime is 1155333541. The next prime is 1155333559. The reversal of 1155333555 is 5553335511.

1155333555 is a `hidden beast` number, since 115 + 533 + 3 + 5 + 5 + 5 = 666.

It is not a de Polignac number, because 1155333555 - 2⁷ = 1155333427 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1155333559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 351570 + ... + 354840.

It is an arithmetic number, because the mean of its divisors is an integer number (42876288).

Almost surely, 2^1155333555 is an apocalyptic number.

1155333555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1155333555 is a deficient number, since it is larger than the sum of its proper divisors (902728269).

1155333555 is a wasteful number, since it uses less digits than its factorization.

1155333555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3496 (or 3493 counting only the distinct ones).

The product of its digits is 84375, while the sum is 36.

The square root of 1155333555 is about 33990.1979252843. The cubic root of 1155333555 is about 1049.3067396559.

It can be divided in two parts, 115533355 and 5, that multiplied together give a palindrome (577666775).

The spelling of 1155333555 in words is "one billion, one hundred fifty-five million, three hundred thirty-three thousand, five hundred fifty-five".