6543430550 has 24 divisors (see below), whose sum is σ = 12238039632. Its totient is φ = 2602908000.

The previous prime is 6543430549. The next prime is 6543430567. The reversal of 6543430550 is 550343456.

It is a self number, because there is not a number n which added to its sum of digits gives 6543430550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 352466 + ... + 370565.

It is an arithmetic number, because the mean of its divisors is an integer number (509918318).

Almost surely, 2^6543430550 is an apocalyptic number.

6543430550 is a deficient number, since it is larger than the sum of its proper divisors (5694609082).

6543430550 is a wasteful number, since it uses less digits than its factorization.

6543430550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723224 (or 723219 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

The square root of 6543430550 is about 80891.4739017654. The cubic root of 6543430550 is about 1870.4028939251.

The spelling of 6543430550 in words is "six billion, five hundred forty-three million, four hundred thirty thousand, five hundred fifty".