33228925 has 12 divisors (see below), whose sum is σ = 42625620. Its totient is φ = 25665920.

The previous prime is 33228917. The next prime is 33228947. The reversal of 33228925 is 52982233.

It can be written as a sum of positive squares in 6 ways, for example, as 120409 + 33108516 = 347^2 + 5754^2 .

It is not a de Polignac number, because 33228925 - 2³ = 33228917 is a prime.

It is a super-2 number, since 2×33228925² = 2208322913311250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22192 + ... + 23641.

It is an arithmetic number, because the mean of its divisors is an integer number (3552135).

Almost surely, 2^33228925 is an apocalyptic number.

It is an amenable number.

33228925 is a deficient number, since it is larger than the sum of its proper divisors (9396695).

33228925 is a wasteful number, since it uses less digits than its factorization.

33228925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45872 (or 45867 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 33228925 is about 5764.4535734101. The cubic root of 33228925 is about 321.4934263019.

It can be divided in two parts, 3322 and 8925, that multiplied together give a triangular number (29648850 = T₇₇₀₀).

The spelling of 33228925 in words is "thirty-three million, two hundred twenty-eight thousand, nine hundred twenty-five".