1125525544 has 128 divisors (see below), whose sum is σ = 2567738880. Its totient is φ = 459528960.

The previous prime is 1125525529. The next prime is 1125525551. The reversal of 1125525544 is 4455255211.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6505842 + ... + 6506014.

It is an arithmetic number, because the mean of its divisors is an integer number (20060460).

Almost surely, 2^1125525544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125525544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1283869440).

1125525544 is an abundant number, since it is smaller than the sum of its proper divisors (1442213336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1125525544 is a wasteful number, since it uses less digits than its factorization.

1125525544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 246 counting only the distinct ones).

The product of its digits is 40000, while the sum is 34.

The square root of 1125525544 is about 33548.8530951507. The cubic root of 1125525544 is about 1040.2038382506.

The spelling of 1125525544 in words is "one billion, one hundred twenty-five million, five hundred twenty-five thousand, five hundred forty-four".