33552104021 has 4 divisors (see below), whose sum is σ = 33711118944. Its totient is φ = 33393089100.

The previous prime is 33552103993. The next prime is 33552104023. The reversal of 33552104021 is 12040125533.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12040125533 = 421 ⋅28598873.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33552104021 is a prime.

It is a super-2 number, since 2×33552104021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33552104023) 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, 79507145 + ... + 79507566.

It is an arithmetic number, because the mean of its divisors is an integer number (8427779736).

Almost surely, 2^33552104021 is an apocalyptic number.

It is an amenable number.

33552104021 is a deficient number, since it is larger than the sum of its proper divisors (159014923).

33552104021 is a wasteful number, since it uses less digits than its factorization.

33552104021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159014922.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 33552104021 its reverse (12040125533), we get a palindrome (45592229554).

The spelling of 33552104021 in words is "thirty-three billion, five hundred fifty-two million, one hundred four thousand, twenty-one".