133505553252 has 24 divisors (see below), whose sum is σ = 319932227776. Its totient is φ = 43299098208.

The previous prime is 133505553241. The next prime is 133505553271. The reversal of 133505553252 is 252355505331.

133505553252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 133505553252.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150343648 + ... + 150344535.

Almost surely, 2^133505553252 is an apocalyptic number.

133505553252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133505553252 is an abundant number, since it is smaller than the sum of its proper divisors (186426674524).

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

133505553252 is a wasteful number, since it uses less digits than its factorization.

133505553252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300688227 (or 300688225 counting only the distinct ones).

The product of its (nonzero) digits is 337500, while the sum is 39.

The spelling of 133505553252 in words is "one hundred thirty-three billion, five hundred five million, five hundred fifty-three thousand, two hundred fifty-two".