1123525425 has 24 divisors (see below), whose sum is σ = 2026432800. Its totient is φ = 544739200.

The previous prime is 1123525421. The next prime is 1123525471. The reversal of 1123525425 is 5245253211.

It is not a de Polignac number, because 1123525425 - 2² = 1123525421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123525392 and 1123525401.

It is not an unprimeable number, because it can be changed into a prime (1123525421) 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, 680100 + ... + 681749.

It is an arithmetic number, because the mean of its divisors is an integer number (84434700).

Almost surely, 2^1123525425 is an apocalyptic number.

1123525425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1123525425 is a deficient number, since it is larger than the sum of its proper divisors (902907375).

1123525425 is a wasteful number, since it uses less digits than its factorization.

1123525425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361873 (or 1361868 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 1123525425 is about 33519.0307884939. The cubic root of 1123525425 is about 1039.5873069791.

Adding to 1123525425 its reverse (5245253211), we get a palindrome (6368778636).

The spelling of 1123525425 in words is "one billion, one hundred twenty-three million, five hundred twenty-five thousand, four hundred twenty-five".