233520533425 has 24 divisors (see below), whose sum is σ = 290042775360. Its totient is φ = 186508766400.

The previous prime is 233520533419. The next prime is 233520533443. The reversal of 233520533425 is 524335025332.

It is a happy number.

It is not a de Polignac number, because 233520533425 - 2⁷ = 233520533297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71389540 + ... + 71392810.

It is an arithmetic number, because the mean of its divisors is an integer number (12085115640).

Almost surely, 2^233520533425 is an apocalyptic number.

233520533425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

233520533425 is a deficient number, since it is larger than the sum of its proper divisors (56522241935).

233520533425 is a wasteful number, since it uses less digits than its factorization.

233520533425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7113 (or 7108 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 37.

Adding to 233520533425 its reverse (524335025332), we get a palindrome (757855558757).

The spelling of 233520533425 in words is "two hundred thirty-three billion, five hundred twenty million, five hundred thirty-three thousand, four hundred twenty-five".