68248253 has 4 divisors (see below), whose sum is σ = 69209568. Its totient is φ = 67286940.

The previous prime is 68248207. The next prime is 68248261. The reversal of 68248253 is 35284286.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35284286 = 2 ⋅17642143.

It is a cyclic number.

It is not a de Polignac number, because 68248253 - 2¹⁶ = 68182717 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 (68248273) 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, 480551 + ... + 480692.

It is an arithmetic number, because the mean of its divisors is an integer number (17302392).

Almost surely, 2^68248253 is an apocalyptic number.

It is an amenable number.

68248253 is a deficient number, since it is larger than the sum of its proper divisors (961315).

68248253 is an equidigital number, since it uses as much as digits as its factorization.

68248253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961314.

The product of its digits is 92160, while the sum is 38.

The square root of 68248253 is about 8261.2500870026. The cubic root of 68248253 is about 408.6616143721.

The spelling of 68248253 in words is "sixty-eight million, two hundred forty-eight thousand, two hundred fifty-three".