1013523425 has 24 divisors (see below), whose sum is σ = 1366682616. Its totient is φ = 742487040.

The previous prime is 1013523421. The next prime is 1013523439. The reversal of 1013523425 is 5243253101.

It is a happy number.

1013523425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 266211856 + 747311569 = 16316^2 + 27337^2 .

It is not a de Polignac number, because 1013523425 - 2² = 1013523421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1013523394 and 1013523403.

It is not an unprimeable number, because it can be changed into a prime (1013523421) 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, 16502 + ... + 47951.

It is an arithmetic number, because the mean of its divisors is an integer number (56945109).

Almost surely, 2^1013523425 is an apocalyptic number.

It is an amenable number.

1013523425 is a deficient number, since it is larger than the sum of its proper divisors (353159191).

1013523425 is a wasteful number, since it uses less digits than its factorization.

1013523425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64517 (or 64512 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1013523425 is about 31835.8826640632. The cubic root of 1013523425 is about 1004.4876393015.

Adding to 1013523425 its reverse (5243253101), we get a palindrome (6256776526).

The spelling of 1013523425 in words is "one billion, thirteen million, five hundred twenty-three thousand, four hundred twenty-five".