33648925 has 6 divisors (see below), whose sum is σ = 41724698. Its totient is φ = 26919120.

The previous prime is 33648883. The next prime is 33648929. The reversal of 33648925 is 52984633.

It can be written as a sum of positive squares in 3 ways, for example, as 2042041 + 31606884 = 1429^2 + 5622^2 .

It is a de Polignac number, because none of the positive numbers 2^k-33648925 is a prime.

It is a super-2 number, since 2×33648925² = 2264500307311250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33648929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 672954 + ... + 673003.

Almost surely, 2^33648925 is an apocalyptic number.

It is an amenable number.

33648925 is a deficient number, since it is larger than the sum of its proper divisors (8075773).

33648925 is a wasteful number, since it uses less digits than its factorization.

33648925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345967 (or 1345962 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The square root of 33648925 is about 5800.7693455265. The cubic root of 33648925 is about 322.8422742725.

The spelling of 33648925 in words is "thirty-three million, six hundred forty-eight thousand, nine hundred twenty-five".