252716993 has 8 divisors (see below), whose sum is σ = 261145728. Its totient is φ = 244372464.

The previous prime is 252716983. The next prime is 252716999. The reversal of 252716993 is 399617252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252716993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252716999) 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, 14921 + ... + 26982.

It is an arithmetic number, because the mean of its divisors is an integer number (32643216).

Almost surely, 2^252716993 is an apocalyptic number.

It is an amenable number.

252716993 is a deficient number, since it is larger than the sum of its proper divisors (8428735).

252716993 is a wasteful number, since it uses less digits than its factorization.

252716993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42103.

The product of its digits is 204120, while the sum is 44.

The square root of 252716993 is about 15897.0749825243. The cubic root of 252716993 is about 632.2344382415.

The spelling of 252716993 in words is "two hundred fifty-two million, seven hundred sixteen thousand, nine hundred ninety-three".