33901225 has 24 divisors (see below), whose sum is σ = 44640000. Its totient is φ = 25467840.

The previous prime is 33901201. The next prime is 33901237. The reversal of 33901225 is 52210933.

It is a happy number.

It is not a de Polignac number, because 33901225 - 2⁵ = 33901193 is a prime.

It is a super-2 number, since 2×33901225² = 2298586113001250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 33901225.

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, 70536 + ... + 71014.

It is an arithmetic number, because the mean of its divisors is an integer number (1860000).

Almost surely, 2^33901225 is an apocalyptic number.

It is an amenable number.

33901225 is a deficient number, since it is larger than the sum of its proper divisors (10738775).

33901225 is a wasteful number, since it uses less digits than its factorization.

33901225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 33901225 is about 5822.4758479533. The cubic root of 33901225 is about 323.6471575473.

The spelling of 33901225 in words is "thirty-three million, nine hundred one thousand, two hundred twenty-five".