33130325 has 12 divisors (see below), whose sum is σ = 42499140. Its totient is φ = 25589760.

The previous prime is 33130313. The next prime is 33130333. The reversal of 33130325 is 52303133.

It can be written as a sum of positive squares in 6 ways, for example, as 1343281 + 31787044 = 1159^2 + 5638^2 .

It is not a de Polignac number, because 33130325 - 2⁶ = 33130261 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 33130297 and 33130306.

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, 22124 + ... + 23573.

It is an arithmetic number, because the mean of its divisors is an integer number (3541595).

Almost surely, 2^33130325 is an apocalyptic number.

It is an amenable number.

33130325 is a deficient number, since it is larger than the sum of its proper divisors (9368815).

33130325 is a wasteful number, since it uses less digits than its factorization.

33130325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45736 (or 45731 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 33130325 is about 5755.8948044592. The cubic root of 33130325 is about 321.1751227226.

Adding to 33130325 its reverse (52303133), we get a palindrome (85433458).

The spelling of 33130325 in words is "thirty-three million, one hundred thirty thousand, three hundred twenty-five".