33013320025 has 18 divisors (see below), whose sum is σ = 47620031550. Its totient is φ = 22637704320.

The previous prime is 33013320019. The next prime is 33013320061. The reversal of 33013320025 is 52002331033.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 204518601 + 32808801424 = 14301^2 + 181132^2 .

It is not a de Polignac number, because 33013320025 - 2⁷ = 33013319897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33013319978 and 33013320005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13473600 + ... + 13476049.

Almost surely, 2^33013320025 is an apocalyptic number.

33013320025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33013320025 is a deficient number, since it is larger than the sum of its proper divisors (14606711525).

33013320025 is a wasteful number, since it uses less digits than its factorization.

33013320025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26949673 (or 26949661 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 22.

Adding to 33013320025 its reverse (52002331033), we get a palindrome (85015651058).

The spelling of 33013320025 in words is "thirty-three billion, thirteen million, three hundred twenty thousand, twenty-five".