6540784550 has 48 divisors (see below), whose sum is σ = 12745946112. Its totient is φ = 2494087200.

The previous prime is 6540784541. The next prime is 6540784573. The reversal of 6540784550 is 554870456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72359 + ... + 135341.

It is an arithmetic number, because the mean of its divisors is an integer number (265540544).

Almost surely, 2^6540784550 is an apocalyptic number.

6540784550 is a deficient number, since it is larger than the sum of its proper divisors (6205161562).

6540784550 is a wasteful number, since it uses less digits than its factorization.

6540784550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63093 (or 63088 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 44.

The square root of 6540784550 is about 80875.1170014610. The cubic root of 6540784550 is about 1870.1507451852.

The spelling of 6540784550 in words is "six billion, five hundred forty million, seven hundred eighty-four thousand, five hundred fifty".