33478925 has 6 divisors (see below), whose sum is σ = 41513898. Its totient is φ = 26783120.

The previous prime is 33478903. The next prime is 33478927. The reversal of 33478925 is 52987433.

It can be written as a sum of positive squares in 3 ways, for example, as 5621641 + 27857284 = 2371^2 + 5278^2 .

It is not a de Polignac number, because 33478925 - 2¹² = 33474829 is a prime.

It is a super-2 number, since 2×33478925² = 2241676838311250, 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 (33478927) 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, 669554 + ... + 669603.

It is an arithmetic number, because the mean of its divisors is an integer number (6918983).

Almost surely, 2^33478925 is an apocalyptic number.

It is an amenable number.

33478925 is a deficient number, since it is larger than the sum of its proper divisors (8034973).

33478925 is a wasteful number, since it uses less digits than its factorization.

33478925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339167 (or 1339162 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 33478925 is about 5786.0975622608. The cubic root of 33478925 is about 322.2976717008.

The spelling of 33478925 in words is "thirty-three million, four hundred seventy-eight thousand, nine hundred twenty-five".