33225447913 has 4 divisors (see below), whose sum is σ = 37971940480. Its totient is φ = 28478955348.

The previous prime is 33225447901. The next prime is 33225447917. The reversal of 33225447913 is 31974452233.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33225447913 - 2⁹ = 33225447401 is a prime.

It is a super-2 number, since 2×33225447913² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33225447913.

It is not an unprimeable number, because it can be changed into a prime (33225447917) 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, 2373246273 + ... + 2373246286.

It is an arithmetic number, because the mean of its divisors is an integer number (9492985120).

Almost surely, 2^33225447913 is an apocalyptic number.

It is an amenable number.

33225447913 is a deficient number, since it is larger than the sum of its proper divisors (4746492567).

33225447913 is an equidigital number, since it uses as much as digits as its factorization.

33225447913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4746492566.

The product of its digits is 544320, while the sum is 43.

The spelling of 33225447913 in words is "thirty-three billion, two hundred twenty-five million, four hundred forty-seven thousand, nine hundred thirteen".