4491782563550 has 12 divisors (see below), whose sum is σ = 8354715568296. Its totient is φ = 1796713025400.

The previous prime is 4491782563547. The next prime is 4491782563601. The reversal of 4491782563550 is 553652871944.

It is a super-2 number, since 2×4491782563550² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4491782563550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44917825586 + ... + 44917825685.

It is an arithmetic number, because the mean of its divisors is an integer number (696226297358).

It is a 1-persistent number, because it is pandigital, but 2⋅4491782563550 = 8983565127100 is not.

Almost surely, 2^{4491782563550} is an apocalyptic number.

4491782563550 is a deficient number, since it is larger than the sum of its proper divisors (3862933004746).

4491782563550 is a wasteful number, since it uses less digits than its factorization.

4491782563550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89835651283 (or 89835651278 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 59.

The spelling of 4491782563550 in words is "four trillion, four hundred ninety-one billion, seven hundred eighty-two million, five hundred sixty-three thousand, five hundred fifty".