252109993 has 8 divisors (see below), whose sum is σ = 266542400. Its totient is φ = 237793968.

The previous prime is 252109987. The next prime is 252109997. The reversal of 252109993 is 399901252.

252109993 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 not a de Polignac number, because 252109993 - 2¹⁷ = 251978921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252109997) 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, 24621 + ... + 33322.

It is an arithmetic number, because the mean of its divisors is an integer number (33317800).

Almost surely, 2^252109993 is an apocalyptic number.

It is an amenable number.

252109993 is a deficient number, since it is larger than the sum of its proper divisors (14432407).

252109993 is a wasteful number, since it uses less digits than its factorization.

252109993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58191.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 252109993 is about 15877.9719422853. The cubic root of 252109993 is about 631.7278452529.

The spelling of 252109993 in words is "two hundred fifty-two million, one hundred nine thousand, nine hundred ninety-three".