1125444525 has 24 divisors (see below), whose sum is σ = 1873076544. Its totient is φ = 596256000.

The previous prime is 1125444517. The next prime is 1125444527. The reversal of 1125444525 is 5254445211.

It is a happy number.

1125444525 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1125444525 - 2³ = 1125444517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125444527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38364 + ... + 61013.

It is an arithmetic number, because the mean of its divisors is an integer number (78044856).

Almost surely, 2^1125444525 is an apocalyptic number.

1125444525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1125444525 is a deficient number, since it is larger than the sum of its proper divisors (747632019).

1125444525 is a wasteful number, since it uses less digits than its factorization.

1125444525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99541 (or 99536 counting only the distinct ones).

The product of its digits is 32000, while the sum is 33.

The square root of 1125444525 is about 33547.6455954811. The cubic root of 1125444525 is about 1040.1788785632.

Adding to 1125444525 its reverse (5254445211), we get a palindrome (6379889736).

The spelling of 1125444525 in words is "one billion, one hundred twenty-five million, four hundred forty-four thousand, five hundred twenty-five".