6425356556 has 12 divisors (see below), whose sum is σ = 11262602568. Its totient is φ = 3207470112.

The previous prime is 6425356549. The next prime is 6425356589. The reversal of 6425356556 is 6556535246.

It is a super-2 number, since 2×6425356556² = 82570413743464362272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6425356556.

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, 1299266 + ... + 1304201.

It is an arithmetic number, because the mean of its divisors is an integer number (938550214).

Almost surely, 2^6425356556 is an apocalyptic number.

It is an amenable number.

6425356556 is a deficient number, since it is larger than the sum of its proper divisors (4837246012).

6425356556 is a wasteful number, since it uses less digits than its factorization.

6425356556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604088 (or 2604086 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 47.

The square root of 6425356556 is about 80158.3218137705. The cubic root of 6425356556 is about 1859.0842754124.

The spelling of 6425356556 in words is "six billion, four hundred twenty-five million, three hundred fifty-six thousand, five hundred fifty-six".