1115550442 has 4 divisors (see below), whose sum is σ = 1673325666. Its totient is φ = 557775220.

The previous prime is 1115550437. The next prime is 1115550463. The reversal of 1115550442 is 2440555111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2440555111 = 19 ⋅128450269.

It can be written as a sum of positive squares in only one way, i.e., 753447601 + 362102841 = 27449^2 + 19029^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1115550442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278887609 + ... + 278887612.

Almost surely, 2^1115550442 is an apocalyptic number.

1115550442 is a deficient number, since it is larger than the sum of its proper divisors (557775224).

1115550442 is an equidigital number, since it uses as much as digits as its factorization.

1115550442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557775223.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 1115550442 is about 33399.8569158612. The cubic root of 1115550442 is about 1037.1217389541.

The spelling of 1115550442 in words is "one billion, one hundred fifteen million, five hundred fifty thousand, four hundred forty-two".