1155553355 has 16 divisors (see below), whose sum is σ = 1535307264. Its totient is φ = 827856480.

The previous prime is 1155553351. The next prime is 1155553367. The reversal of 1155553355 is 5533555511.

It is not a de Polignac number, because 1155553355 - 2² = 1155553351 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1155553351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153107 + ... + 160476.

It is an arithmetic number, because the mean of its divisors is an integer number (95956704).

Almost surely, 2^1155553355 is an apocalyptic number.

1155553355 is a deficient number, since it is larger than the sum of its proper divisors (379753909).

1155553355 is a wasteful number, since it uses less digits than its factorization.

1155553355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313666.

The product of its digits is 140625, while the sum is 38.

The square root of 1155553355 is about 33993.4310566027. The cubic root of 1155553355 is about 1049.3732783035.

The spelling of 1155553355 in words is "one billion, one hundred fifty-five million, five hundred fifty-three thousand, three hundred fifty-five".