33640521441053 has 4 divisors (see below), whose sum is σ = 33641614370748. Its totient is φ = 33639428511360.

The previous prime is 33640521441041. The next prime is 33640521441103. The reversal of 33640521441053 is 35014412504633.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11995118779609 + 21645402661444 = 3463397^2 + 4652462^2 .

It is a cyclic number.

It is not a de Polignac number, because 33640521441053 - 2²⁴ = 33640504663837 is a prime.

It is a super-2 number, since 2×33640521441053² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 33640521441053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33640521449053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546418676 + ... + 546480237.

It is an arithmetic number, because the mean of its divisors is an integer number (8410403592687).

Almost surely, 2^{33640521441053} is an apocalyptic number.

It is an amenable number.

33640521441053 is a deficient number, since it is larger than the sum of its proper divisors (1092929695).

33640521441053 is a wasteful number, since it uses less digits than its factorization.

33640521441053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092929694.

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 33640521441053 its reverse (35014412504633), we get a palindrome (68654933945686).

The spelling of 33640521441053 in words is "thirty-three trillion, six hundred forty billion, five hundred twenty-one million, four hundred forty-one thousand, fifty-three".