252836993 has 8 divisors (see below), whose sum is σ = 262226280. Its totient is φ = 243492480.

The previous prime is 252836959. The next prime is 252837031. The reversal of 252836993 is 399638252.

It is a happy number.

252836993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 91623184 + 161213809 = 9572^2 + 12697^2 .

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 252836993 - 2⁶ = 252836929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252836293) 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, 533 + ... + 22493.

It is an arithmetic number, because the mean of its divisors is an integer number (32778285).

Almost surely, 2^252836993 is an apocalyptic number.

It is an amenable number.

252836993 is a deficient number, since it is larger than the sum of its proper divisors (9389287).

252836993 is a wasteful number, since it uses less digits than its factorization.

252836993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22387.

The product of its digits is 699840, while the sum is 47.

The square root of 252836993 is about 15900.8488138212. The cubic root of 252836993 is about 632.3344923593.

The spelling of 252836993 in words is "two hundred fifty-two million, eight hundred thirty-six thousand, nine hundred ninety-three".