33028025805550 has 24 divisors (see below), whose sum is σ = 62297369244432. Its totient is φ = 13025136936000.

The previous prime is 33028025805503. The next prime is 33028025805571. The reversal of 33028025805550 is 5550852082033.

It is a super-2 number, since 2×33028025805550² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33028025805550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4651831071 + ... + 4651838170.

It is an arithmetic number, because the mean of its divisors is an integer number (2595723718518).

Almost surely, 2^{33028025805550} is an apocalyptic number.

33028025805550 is a deficient number, since it is larger than the sum of its proper divisors (29269343438882).

33028025805550 is a wasteful number, since it uses less digits than its factorization.

33028025805550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9303669324 (or 9303669319 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 46.

Adding to 33028025805550 its reverse (5550852082033), we get a palindrome (38578877887583).

The spelling of 33028025805550 in words is "thirty-three trillion, twenty-eight billion, twenty-five million, eight hundred five thousand, five hundred fifty".