6475447556 has 6 divisors (see below), whose sum is σ = 11332033230. Its totient is φ = 3237723776.

The previous prime is 6475447499. The next prime is 6475447571. The reversal of 6475447556 is 6557445746.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5547270400 + 928177156 = 74480^2 + 30466^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6475447498 and 6475447507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 809430941 + ... + 809430948.

It is an arithmetic number, because the mean of its divisors is an integer number (1888672205).

Almost surely, 2^6475447556 is an apocalyptic number.

It is an amenable number.

6475447556 is a deficient number, since it is larger than the sum of its proper divisors (4856585674).

6475447556 is a wasteful number, since it uses less digits than its factorization.

6475447556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618861893 (or 1618861891 counting only the distinct ones).

The product of its digits is 14112000, while the sum is 53.

The square root of 6475447556 is about 80470.1656267713. The cubic root of 6475447556 is about 1863.9028117250.

The spelling of 6475447556 in words is "six billion, four hundred seventy-five million, four hundred forty-seven thousand, five hundred fifty-six".