3221002525 has 24 divisors (see below), whose sum is σ = 4311052200. Its totient is φ = 2373181440.

The previous prime is 3221002523. The next prime is 3221002553. The reversal of 3221002525 is 5252001223.

It can be written as a sum of positive squares in 12 ways, for example, as 418570681 + 2802431844 = 20459^2 + 52938^2 .

It is not a de Polignac number, because 3221002525 - 2¹ = 3221002523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3221002496 and 3221002505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221002523) 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, 134889 + ... + 156961.

It is an arithmetic number, because the mean of its divisors is an integer number (179627175).

Almost surely, 2^3221002525 is an apocalyptic number.

It is an amenable number.

3221002525 is a deficient number, since it is larger than the sum of its proper divisors (1090049675).

3221002525 is a wasteful number, since it uses less digits than its factorization.

3221002525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22545 (or 22540 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 3221002525 is about 56753.8767398316. The cubic root of 3221002525 is about 1476.8294870517.

Adding to 3221002525 its reverse (5252001223), we get a palindrome (8473003748).

The spelling of 3221002525 in words is "three billion, two hundred twenty-one million, two thousand, five hundred twenty-five".