3299857525 has 18 divisors (see below), whose sum is σ = 4161731586. Its totient is φ = 2594844000.

The previous prime is 3299857513. The next prime is 3299857529. The reversal of 3299857525 is 5257589923.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8655364 + 3291202161 = 2942^2 + 57369^2 .

It is not a de Polignac number, because 3299857525 - 2⁷ = 3299857397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3299857529) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2242540 + ... + 2244010.

Almost surely, 2^3299857525 is an apocalyptic number.

It is an amenable number.

3299857525 is a deficient number, since it is larger than the sum of its proper divisors (861874061).

3299857525 is an frugal number, since it uses more digits than its factorization.

3299857525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013 (or 1537 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 55.

The square root of 3299857525 is about 57444.3863662934. The cubic root of 3299857525 is about 1488.7841266282.

The spelling of 3299857525 in words is "three billion, two hundred ninety-nine million, eight hundred fifty-seven thousand, five hundred twenty-five".