252543791933 has 4 divisors (see below), whose sum is σ = 253526452860. Its totient is φ = 251561131008.

The previous prime is 252543791917. The next prime is 252543791947. The reversal of 252543791933 is 339197345252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 241644014329 + 10899777604 = 491573^2 + 104402^2 .

It is a cyclic number.

It is not a de Polignac number, because 252543791933 - 2⁴ = 252543791917 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 (252543791993) 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, 491330078 + ... + 491330591.

It is an arithmetic number, because the mean of its divisors is an integer number (63381613215).

Almost surely, 2^252543791933 is an apocalyptic number.

It is an amenable number.

252543791933 is a deficient number, since it is larger than the sum of its proper divisors (982660927).

252543791933 is an equidigital number, since it uses as much as digits as its factorization.

252543791933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982660926.

The product of its digits is 6123600, while the sum is 53.

The spelling of 252543791933 in words is "two hundred fifty-two billion, five hundred forty-three million, seven hundred ninety-one thousand, nine hundred thirty-three".