1115402555 has 32 divisors (see below), whose sum is σ = 1473401664. Its totient is φ = 807100416.

The previous prime is 1115402479. The next prime is 1115402567. The reversal of 1115402555 is 5552045111.

It is a cyclic number.

It is not a de Polignac number, because 1115402555 - 2¹⁴ = 1115386171 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258899 + ... + 263171.

It is an arithmetic number, because the mean of its divisors is an integer number (46043802).

Almost surely, 2^1115402555 is an apocalyptic number.

1115402555 is a deficient number, since it is larger than the sum of its proper divisors (357999109).

1115402555 is a wasteful number, since it uses less digits than its factorization.

1115402555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4415.

The product of its (nonzero) digits is 5000, while the sum is 29.

The square root of 1115402555 is about 33397.6429557536. The cubic root of 1115402555 is about 1037.0759069908.

Adding to 1115402555 its reverse (5552045111), we get a palindrome (6667447666).

The spelling of 1115402555 in words is "one billion, one hundred fifteen million, four hundred two thousand, five hundred fifty-five".