3325275252581 has 4 divisors (see below), whose sum is σ = 3355782365100. Its totient is φ = 3294768140064.

The previous prime is 3325275252547. The next prime is 3325275252613. The reversal of 3325275252581 is 1852525725233.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1567025772481 + 1758249480100 = 1251809^2 + 1325990^2 .

It is a cyclic number.

It is not a de Polignac number, because 3325275252581 - 2³⁸ = 3050397345637 is a prime.

It is a super-2 number, since 2×3325275252581² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3325275252521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15253556096 + ... + 15253556313.

It is an arithmetic number, because the mean of its divisors is an integer number (838945591275).

Almost surely, 2^{3325275252581} is an apocalyptic number.

It is an amenable number.

3325275252581 is a deficient number, since it is larger than the sum of its proper divisors (30507112519).

3325275252581 is a wasteful number, since it uses less digits than its factorization.

3325275252581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30507112518.

The product of its digits is 5040000, while the sum is 50.

The spelling of 3325275252581 in words is "three trillion, three hundred twenty-five billion, two hundred seventy-five million, two hundred fifty-two thousand, five hundred eighty-one".