133533565725 has 48 divisors (see below), whose sum is σ = 256591434240. Its totient is φ = 60009259200.

The previous prime is 133533565709. The next prime is 133533565729. The reversal of 133533565725 is 527565335331.

It is a happy number.

It is not a de Polignac number, because 133533565725 - 2⁴ = 133533565709 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133533565729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2124531 + ... + 2186480.

It is an arithmetic number, because the mean of its divisors is an integer number (5345654880).

Almost surely, 2^133533565725 is an apocalyptic number.

133533565725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133533565725 is a deficient number, since it is larger than the sum of its proper divisors (123057868515).

133533565725 is a wasteful number, since it uses less digits than its factorization.

133533565725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4311090 (or 4311085 counting only the distinct ones).

The product of its digits is 4252500, while the sum is 48.

The spelling of 133533565725 in words is "one hundred thirty-three billion, five hundred thirty-three million, five hundred sixty-five thousand, seven hundred twenty-five".