1135505655 has 64 divisors (see below), whose sum is σ = 2072355840. Its totient is φ = 589680000.

The previous prime is 1135505639. The next prime is 1135505659. The reversal of 1135505655 is 5565055311.

1135505655 is a `hidden beast` number, since 1 + 1 + 3 + 550 + 56 + 55 = 666.

It is not a de Polignac number, because 1135505655 - 2⁴ = 1135505639 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135505659) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1079880 + ... + 1080930.

It is an arithmetic number, because the mean of its divisors is an integer number (32380560).

Almost surely, 2^1135505655 is an apocalyptic number.

1135505655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1135505655 is a deficient number, since it is larger than the sum of its proper divisors (936850185).

1135505655 is a wasteful number, since it uses less digits than its factorization.

1135505655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 36.

The square root of 1135505655 is about 33697.2647999804. The cubic root of 1135505655 is about 1043.2693146545.

The spelling of 1135505655 in words is "one billion, one hundred thirty-five million, five hundred five thousand, six hundred fifty-five".