33555225 has 48 divisors (see below), whose sum is σ = 61335360. Its totient is φ = 16051200.

The previous prime is 33555217. The next prime is 33555241. The reversal of 33555225 is 52255533.

It is not a de Polignac number, because 33555225 - 2³ = 33555217 is a prime.

It is a super-2 number, since 2×33555225² = 2251906249601250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33555192 and 33555201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73197 + ... + 73653.

It is an arithmetic number, because the mean of its divisors is an integer number (1277820).

Almost surely, 2^33555225 is an apocalyptic number.

It is an amenable number.

33555225 is a deficient number, since it is larger than the sum of its proper divisors (27780135).

33555225 is a wasteful number, since it uses less digits than its factorization.

33555225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 565 counting only the distinct ones).

The product of its digits is 22500, while the sum is 30.

The square root of 33555225 is about 5792.6872002552. The cubic root of 33555225 is about 322.5423296400.

The spelling of 33555225 in words is "thirty-three million, five hundred fifty-five thousand, two hundred twenty-five".