1111442425 has 6 divisors (see below), whose sum is σ = 1378188638. Its totient is φ = 889153920.

The previous prime is 1111442369. The next prime is 1111442483. The reversal of 1111442425 is 5242441111.

It can be written as a sum of positive squares in 3 ways, for example, as 299705344 + 811737081 = 17312^2 + 28491^2 .

It is not a de Polignac number, because 1111442425 - 2⁹ = 1111441913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 44457697 = 1111442425 / (1 + 1 + 1 + 1 + 4 + 4 + 2 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1111442425.

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 5 ways as a sum of consecutive naturals, for example, 22228824 + ... + 22228873.

Almost surely, 2^1111442425 is an apocalyptic number.

It is an amenable number.

1111442425 is a deficient number, since it is larger than the sum of its proper divisors (266746213).

1111442425 is an equidigital number, since it uses as much as digits as its factorization.

1111442425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44457707 (or 44457702 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 1111442425 is about 33338.3026712519. The cubic root of 1111442425 is about 1035.8471053492.

Adding to 1111442425 its reverse (5242441111), we get a palindrome (6353883536).

It can be divided in two parts, 111144 and 2425, that added together give a square (113569 = 337²).

The spelling of 1111442425 in words is "one billion, one hundred eleven million, four hundred forty-two thousand, four hundred twenty-five".