6255243640 has 16 divisors (see below), whose sum is σ = 14074298280. Its totient is φ = 2502097440.

The previous prime is 6255243629. The next prime is 6255243671. The reversal of 6255243640 is 463425526.

It is a self number, because there is not a number n which added to its sum of digits gives 6255243640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78190506 + ... + 78190585.

Almost surely, 2^6255243640 is an apocalyptic number.

It is an amenable number.

6255243640 is an abundant number, since it is smaller than the sum of its proper divisors (7819054640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6255243640 is a wasteful number, since it uses less digits than its factorization.

6255243640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156381102 (or 156381098 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The square root of 6255243640 is about 79090.0982424475. The cubic root of 6255243640 is about 1842.5307449210.

The spelling of 6255243640 in words is "six billion, two hundred fifty-five million, two hundred forty-three thousand, six hundred forty".