3231540525 has 24 divisors (see below), whose sum is σ = 5373718560. Its totient is φ = 1713519040.

The previous prime is 3231540407. The next prime is 3231540553. The reversal of 3231540525 is 5250451323.

It is not a de Polignac number, because 3231540525 - 2¹⁰ = 3231539501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3231540492 and 3231540501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111555 + ... + 137504.

It is an arithmetic number, because the mean of its divisors is an integer number (223904940).

Almost surely, 2^3231540525 is an apocalyptic number.

It is an amenable number.

3231540525 is a deficient number, since it is larger than the sum of its proper divisors (2142178035).

3231540525 is a wasteful number, since it uses less digits than its factorization.

3231540525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249245 (or 249240 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 3231540525 is about 56846.6404020501. The cubic root of 3231540525 is about 1478.4382913230.

Adding to 3231540525 its reverse (5250451323), we get a palindrome (8481991848).

The spelling of 3231540525 in words is "three billion, two hundred thirty-one million, five hundred forty thousand, five hundred twenty-five".