1123500525 has 24 divisors (see below), whose sum is σ = 2122881984. Its totient is φ = 513600000.

The previous prime is 1123500503. The next prime is 1123500557. The reversal of 1123500525 is 5250053211.

It is a happy number.

It is not a de Polignac number, because 1123500525 - 2⁵ = 1123500493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123500495 and 1123500504.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 1069476 + ... + 1070525.

It is an arithmetic number, because the mean of its divisors is an integer number (88453416).

Almost surely, 2^1123500525 is an apocalyptic number.

1123500525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1123500525 is a deficient number, since it is larger than the sum of its proper divisors (999381459).

1123500525 is a wasteful number, since it uses less digits than its factorization.

1123500525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140021 (or 2140016 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1123500525 is about 33518.6593556485. The cubic root of 1123500525 is about 1039.5796270119.

Adding to 1123500525 its reverse (5250053211), we get a palindrome (6373553736).

The spelling of 1123500525 in words is "one billion, one hundred twenty-three million, five hundred thousand, five hundred twenty-five".