133253005235501 has 4 divisors (see below), whose sum is σ = 133256611871232. Its totient is φ = 133249398599772.

The previous prime is 133253005235477. The next prime is 133253005235527. The reversal of 133253005235501 is 105532500352331.

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.

It is a cyclic number.

It is not a de Polignac number, because 133253005235501 - 2³⁰ = 133251931493677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133253005235591) 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, 1803262445 + ... + 1803336338.

It is an arithmetic number, because the mean of its divisors is an integer number (33314152967808).

Almost surely, 2^{133253005235501} is an apocalyptic number.

It is an amenable number.

133253005235501 is a deficient number, since it is larger than the sum of its proper divisors (3606635731).

133253005235501 is an equidigital number, since it uses as much as digits as its factorization.

133253005235501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606635730.

The product of its (nonzero) digits is 202500, while the sum is 38.

Adding to 133253005235501 its reverse (105532500352331), we get a palindrome (238785505587832).

The spelling of 133253005235501 in words is "one hundred thirty-three trillion, two hundred fifty-three billion, five million, two hundred thirty-five thousand, five hundred one".