33012325405 has 4 divisors (see below), whose sum is σ = 39614790492. Its totient is φ = 26409860320.

The previous prime is 33012325403. The next prime is 33012325487. The reversal of 33012325405 is 50452321033.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7858999801 + 25153325604 = 88651^2 + 158598^2 .

It is not a de Polignac number, because 33012325405 - 2¹ = 33012325403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33012325403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3301232536 + ... + 3301232545.

It is an arithmetic number, because the mean of its divisors is an integer number (9903697623).

Almost surely, 2^33012325405 is an apocalyptic number.

It is an amenable number.

33012325405 is a deficient number, since it is larger than the sum of its proper divisors (6602465087).

33012325405 is an equidigital number, since it uses as much as digits as its factorization.

33012325405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6602465086.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 33012325405 its reverse (50452321033), we get a palindrome (83464646438).

The spelling of 33012325405 in words is "thirty-three billion, twelve million, three hundred twenty-five thousand, four hundred five".