1115553455 has 8 divisors (see below), whose sum is σ = 1343396112. Its totient is φ = 889288128.

The previous prime is 1115553451. The next prime is 1115553457. The reversal of 1115553455 is 5543555111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1115553455 - 2² = 1115553451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115553451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392774 + ... + 395603.

It is an arithmetic number, because the mean of its divisors is an integer number (167924514).

Almost surely, 2^1115553455 is an apocalyptic number.

1115553455 is a deficient number, since it is larger than the sum of its proper divisors (227842657).

1115553455 is an equidigital number, since it uses as much as digits as its factorization.

1115553455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788665.

The product of its digits is 37500, while the sum is 35.

The square root of 1115553455 is about 33399.9020208144. The cubic root of 1115553455 is about 1037.1226726770.

The spelling of 1115553455 in words is "one billion, one hundred fifteen million, five hundred fifty-three thousand, four hundred fifty-five".