3513521025 has 72 divisors (see below), whose sum is σ = 7290882560. Its totient is φ = 1584126720.

The previous prime is 3513520993. The next prime is 3513521069. The reversal of 3513521025 is 5201253153.

It is a happy number.

It is not a de Polignac number, because 3513521025 - 2⁵ = 3513520993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3513521025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 99696 + ... + 130254.

Almost surely, 2^3513521025 is an apocalyptic number.

3513521025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3513521025 is an abundant number, since it is smaller than the sum of its proper divisors (3777361535).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3513521025 is a wasteful number, since it uses less digits than its factorization.

3513521025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30655 (or 30647 counting only the distinct ones).

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

The square root of 3513521025 is about 59274.9611977941. The cubic root of 3513521025 is about 1520.2471067843.

Adding to 3513521025 its reverse (5201253153), we get a palindrome (8714774178).

The spelling of 3513521025 in words is "three billion, five hundred thirteen million, five hundred twenty-one thousand, twenty-five".