253304717 has 4 divisors (see below), whose sum is σ = 253498080. Its totient is φ = 253111356.

The previous prime is 253304699. The next prime is 253304719. The reversal of 253304717 is 717403352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253304717 - 2¹⁴ = 253288333 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 (253304719) 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, 94703 + ... + 97340.

It is an arithmetic number, because the mean of its divisors is an integer number (63374520).

Almost surely, 2^253304717 is an apocalyptic number.

It is an amenable number.

253304717 is a deficient number, since it is larger than the sum of its proper divisors (193363).

253304717 is a wasteful number, since it uses less digits than its factorization.

253304717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193362.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 253304717 is about 15915.5495349674. The cubic root of 253304717 is about 632.7241714001.

The spelling of 253304717 in words is "two hundred fifty-three million, three hundred four thousand, seven hundred seventeen".