1115550433 has 4 divisors (see below), whose sum is σ = 1118921008. Its totient is φ = 1112179860.

The previous prime is 1115550431. The next prime is 1115550437. The reversal of 1115550433 is 3340555111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3340555111 = 1699 ⋅1966189.

It is not a de Polignac number, because 1115550433 - 2¹ = 1115550431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115550431) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1684791 + ... + 1685452.

It is an arithmetic number, because the mean of its divisors is an integer number (279730252).

Almost surely, 2^1115550433 is an apocalyptic number.

It is an amenable number.

1115550433 is a deficient number, since it is larger than the sum of its proper divisors (3370575).

1115550433 is an equidigital number, since it uses as much as digits as its factorization.

1115550433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370574.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 1115550433 is about 33399.8567811301. The cubic root of 1115550433 is about 1037.1217361650.

The spelling of 1115550433 in words is "one billion, one hundred fifteen million, five hundred fifty thousand, four hundred thirty-three".