1125122525 has 48 divisors (see below), whose sum is σ = 1532044800. Its totient is φ = 816480000.

The previous prime is 1125122513. The next prime is 1125122539. The reversal of 1125122525 is 5252215211.

It is a happy number.

It is not a de Polignac number, because 1125122525 - 2⁸ = 1125122269 is a prime.

It is a super-3 number, since 3×1125122525³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1125122494 and 1125122503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1604675 + ... + 1605375.

It is an arithmetic number, because the mean of its divisors is an integer number (31917600).

Almost surely, 2^1125122525 is an apocalyptic number.

It is an amenable number.

1125122525 is a deficient number, since it is larger than the sum of its proper divisors (406922275).

1125122525 is a wasteful number, since it uses less digits than its factorization.

1125122525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 865 counting only the distinct ones).

The product of its digits is 2000, while the sum is 26.

The square root of 1125122525 is about 33542.8461076278. The cubic root of 1125122525 is about 1040.0796675287.

Adding to 1125122525 its reverse (5252215211), we get a palindrome (6377337736).

The spelling of 1125122525 in words is "one billion, one hundred twenty-five million, one hundred twenty-two thousand, five hundred twenty-five".