33125425256 has 128 divisors (see below), whose sum is σ = 78449817600. Its totient is φ = 12738021120.

The previous prime is 33125425253. The next prime is 33125425339. The reversal of 33125425256 is 65252452133.

It is not an unprimeable number, because it can be changed into a prime (33125425253) 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 31 ways as a sum of consecutive naturals, for example, 20612405 + ... + 20614011.

It is an arithmetic number, because the mean of its divisors is an integer number (612889200).

Almost surely, 2^33125425256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33125425256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39224908800).

33125425256 is an abundant number, since it is smaller than the sum of its proper divisors (45324392344).

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

33125425256 is a wasteful number, since it uses less digits than its factorization.

33125425256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047 (or 2043 counting only the distinct ones).

The product of its digits is 216000, while the sum is 38.

Adding to 33125425256 its reverse (65252452133), we get a palindrome (98377877389).

The spelling of 33125425256 in words is "thirty-three billion, one hundred twenty-five million, four hundred twenty-five thousand, two hundred fifty-six".