3520858196025 has 27 divisors (see below), whose sum is σ = 6306298648429. Its totient is φ = 1877776026720.

The previous prime is 3520858195979. The next prime is 3520858196041. The reversal of 3520858196025 is 5206918580253.

It is a happy number.

The square root of 3520858196025 is 1876395.

It is a perfect power (a square), and thus also a powerful number.

3520858196025 is a `hidden beast` number, since 3 + 5 + 20 + 8 + 5 + 8 + 1 + 9 + 602 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 866278809081 + 2654579386944 = 930741^2 + 1629288^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3520858196025 is a prime.

It is a Duffinian 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 26 ways as a sum of consecutive naturals, for example, 28083379 + ... + 28208471.

Almost surely, 2^{3520858196025} is an apocalyptic number.

3520858196025 is the 1876395-th square number.

3520858196025 is the 938198-th centered octagonal number.

It is an amenable number.

3520858196025 is a deficient number, since it is larger than the sum of its proper divisors (2785440452404).

3520858196025 is an frugal number, since it uses more digits than its factorization.

3520858196025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250202 (or 125101 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 54.

The spelling of 3520858196025 in words is "three trillion, five hundred twenty billion, eight hundred fifty-eight million, one hundred ninety-six thousand, twenty-five".