1013235525 has 36 divisors (see below), whose sum is σ = 1824298788. Its totient is φ = 537569280.

The previous prime is 1013235523. The next prime is 1013235539. The reversal of 1013235525 is 5255323101.

It is a happy number.

1013235525 is a `hidden beast` number, since 1 + 0 + 132 + 3 + 5 + 525 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 297459009 + 715776516 = 17247^2 + 26754^2 .

It is not a de Polignac number, because 1013235525 - 2¹ = 1013235523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013235523) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 31759 + ... + 55091.

Almost surely, 2^1013235525 is an apocalyptic number.

1013235525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1013235525 is a deficient number, since it is larger than the sum of its proper divisors (811063263).

1013235525 is a wasteful number, since it uses less digits than its factorization.

1013235525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23542 (or 23534 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1013235525 is about 31831.3607154957. The cubic root of 1013235525 is about 1004.3925191917.

Adding to 1013235525 its reverse (5255323101), we get a palindrome (6268558626).

The spelling of 1013235525 in words is "one billion, thirteen million, two hundred thirty-five thousand, five hundred twenty-five".