33831125 has 16 divisors (see below), whose sum is σ = 42709680. Its totient is φ = 26752000.

The previous prime is 33831121. The next prime is 33831151. The reversal of 33831125 is 52113833.

It can be written as a sum of positive squares in 8 ways, for example, as 6436369 + 27394756 = 2537^2 + 5234^2 .

It is not a de Polignac number, because 33831125 - 2² = 33831121 is a prime.

It is a super-2 number, since 2×33831125² = 2289090037531250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33831094 and 33831103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33831121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9605 + ... + 12645.

It is an arithmetic number, because the mean of its divisors is an integer number (2669355).

Almost surely, 2^33831125 is an apocalyptic number.

It is an amenable number.

33831125 is a deficient number, since it is larger than the sum of its proper divisors (8878555).

33831125 is an equidigital number, since it uses as much as digits as its factorization.

33831125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145 (or 3135 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 33831125 is about 5816.4529569145. The cubic root of 33831125 is about 323.4239274490.

Adding to 33831125 its reverse (52113833), we get a palindrome (85944958).

The spelling of 33831125 in words is "thirty-three million, eight hundred thirty-one thousand, one hundred twenty-five".