33508225 has 6 divisors (see below), whose sum is σ = 41550230. Its totient is φ = 26806560.

The previous prime is 33508219. The next prime is 33508261. The reversal of 33508225 is 52280533.

It can be written as a sum of positive squares in 3 ways, for example, as 8976016 + 24532209 = 2996^2 + 4953^2 .

It is not a de Polignac number, because 33508225 - 2²¹ = 31411073 is a prime.

It is a super-2 number, since 2×33508225² = 2245602285301250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33508193 and 33508202.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 670140 + ... + 670189.

Almost surely, 2^33508225 is an apocalyptic number.

It is an amenable number.

33508225 is a deficient number, since it is larger than the sum of its proper divisors (8042005).

33508225 is a wasteful number, since it uses less digits than its factorization.

33508225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340339 (or 1340334 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 33508225 is about 5788.6289395676. The cubic root of 33508225 is about 322.3916668361.

Adding to 33508225 its reverse (52280533), we get a palindrome (85788758).

It can be divided in two parts, 33508 and 225, that added together give a palindrome (33733).

The spelling of 33508225 in words is "thirty-three million, five hundred eight thousand, two hundred twenty-five".