6225943993 has 4 divisors (see below), whose sum is σ = 6426780928. Its totient is φ = 6025107060.

The previous prime is 6225943957. The next prime is 6225944029. The reversal of 6225943993 is 3993495226.

6225943993 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (6225943957) and next prime (6225944029).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6225943993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6225943993.

It is not an unprimeable number, because it can be changed into a prime (6225943903) 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, 100418421 + ... + 100418482.

It is an arithmetic number, because the mean of its divisors is an integer number (1606695232).

Almost surely, 2^6225943993 is an apocalyptic number.

It is an amenable number.

6225943993 is a deficient number, since it is larger than the sum of its proper divisors (200836935).

6225943993 is a wasteful number, since it uses less digits than its factorization.

6225943993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200836934.

The product of its digits is 3149280, while the sum is 52.

The square root of 6225943993 is about 78904.6512760813. The cubic root of 6225943993 is about 1839.6494284256.

The spelling of 6225943993 in words is "six billion, two hundred twenty-five million, nine hundred forty-three thousand, nine hundred ninety-three".