6245 has 4 divisors (see below), whose sum is σ = 7500.
Its totient is φ = 4992.
The previous prime is 6229. The next prime is 6247. The reversal of 6245 is 5426.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5426 = 2 ⋅2713.
It can be written as a sum of positive squares in 2 ways, for example, as 2401 + 3844 = 49^2 + 62^2
It is a cyclic number.
It is not a de Polignac number, because 6245 - 24 = 6229 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6247) 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, 620 + ... + 629.
It is an arithmetic number, because the mean of its divisors is an integer number (1875).
It is an amenable number.
6245 is a deficient number, since it is larger than the sum of its proper divisors (1255).
6245 is a wasteful number, since it uses less digits than its factorization.
6245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1254.
The product of its digits is 240, while the sum is 17.
The square root of 6245 is about 79.0253124005.
The cubic root of 6245 is about 18.4152441407.
The spelling of 6245 in words is "six thousand, two hundred forty-five".