33125203420 has 12 divisors (see below), whose sum is σ = 69562927224. Its totient is φ = 13250081360.

The previous prime is 33125203417. The next prime is 33125203429. The reversal of 33125203420 is 2430252133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33125203429) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 828130066 + ... + 828130105.

It is an arithmetic number, because the mean of its divisors is an integer number (5796910602).

Almost surely, 2^33125203420 is an apocalyptic number.

It is an amenable number.

33125203420 is an abundant number, since it is smaller than the sum of its proper divisors (36437723804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33125203420 is a wasteful number, since it uses less digits than its factorization.

33125203420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656260180 (or 1656260178 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 33125203420 its reverse (2430252133), we get a palindrome (35555455553).

The spelling of 33125203420 in words is "thirty-three billion, one hundred twenty-five million, two hundred three thousand, four hundred twenty".