233305545533 has 12 divisors (see below), whose sum is σ = 244674681888. Its totient is φ = 222444107160.

The previous prime is 233305545511. The next prime is 233305545559. The reversal of 233305545533 is 335545503332.

It is not a de Polignac number, because 233305545533 - 2¹⁸ = 233305283389 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 (233305545233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 544535 + ... + 873572.

It is an arithmetic number, because the mean of its divisors is an integer number (20389556824).

Almost surely, 2^233305545533 is an apocalyptic number.

233305545533 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

233305545533 is a deficient number, since it is larger than the sum of its proper divisors (11369136355).

233305545533 is a wasteful number, since it uses less digits than its factorization.

233305545533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418464 (or 1418441 counting only the distinct ones).

The product of its (nonzero) digits is 1215000, while the sum is 41.

The spelling of 233305545533 in words is "two hundred thirty-three billion, three hundred five million, five hundred forty-five thousand, five hundred thirty-three".