1115525444 has 24 divisors (see below), whose sum is σ = 2141420736. Its totient is φ = 504252000.

The previous prime is 1115525407. The next prime is 1115525447. The reversal of 1115525444 is 4445255111.

It is a happy number.

It is a super-2 number, since 2×1115525444² = 2488794032422794272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1115525444.

It is not an unprimeable number, because it can be changed into a prime (1115525447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62072 + ... + 77999.

It is an arithmetic number, because the mean of its divisors is an integer number (89225864).

Almost surely, 2^1115525444 is an apocalyptic number.

It is an amenable number.

1115525444 is a deficient number, since it is larger than the sum of its proper divisors (1025895292).

1115525444 is a wasteful number, since it uses less digits than its factorization.

1115525444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140267 (or 140265 counting only the distinct ones).

The product of its digits is 16000, while the sum is 32.

The square root of 1115525444 is about 33399.4826906047. The cubic root of 1115525444 is about 1037.1139920572.

The spelling of 1115525444 in words is "one billion, one hundred fifteen million, five hundred twenty-five thousand, four hundred forty-four".