6225639494 has 16 divisors (see below), whose sum is σ = 9746341632. Its totient is φ = 2976910728.

The previous prime is 6225639487. The next prime is 6225639523. The reversal of 6225639494 is 4949365226.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325727 + ... + 344309.

It is an arithmetic number, because the mean of its divisors is an integer number (609146352).

Almost surely, 2^6225639494 is an apocalyptic number.

6225639494 is a deficient number, since it is larger than the sum of its proper divisors (3520702138).

6225639494 is a wasteful number, since it uses less digits than its factorization.

6225639494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25891.

The product of its digits is 2799360, while the sum is 50.

The square root of 6225639494 is about 78902.7217147799. The cubic root of 6225639494 is about 1839.6194366929.

The spelling of 6225639494 in words is "six billion, two hundred twenty-five million, six hundred thirty-nine thousand, four hundred ninety-four".