252549683305921 has 8 divisors (see below), whose sum is σ = 252812461806080. Its totient is φ = 252286908134688.

The previous prime is 252549683305889. The next prime is 252549683305937. The reversal of 252549683305921 is 129503386945252.

252549683305921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252549683305921 - 2⁵ = 252549683305889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252549683305951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168982885 + ... + 170470861.

It is an arithmetic number, because the mean of its divisors is an integer number (31601557725760).

Almost surely, 2^{252549683305921} is an apocalyptic number.

It is an amenable number.

252549683305921 is a deficient number, since it is larger than the sum of its proper divisors (262778500159).

252549683305921 is a wasteful number, since it uses less digits than its factorization.

252549683305921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664463.

The product of its (nonzero) digits is 139968000, while the sum is 64.

The spelling of 252549683305921 in words is "two hundred fifty-two trillion, five hundred forty-nine billion, six hundred eighty-three million, three hundred five thousand, nine hundred twenty-one".