563777982 has 64 divisors (see below), whose sum is σ = 1289709120. Its totient is φ = 184757760.

The previous prime is 563777959. The next prime is 563777989. The reversal of 563777982 is 289777365.

563777982 is a `hidden beast` number, since 563 + 7 + 7 + 79 + 8 + 2 = 666.

563777982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×563777982² = 635691225975984648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563777989) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265758 + ... + 267870.

It is an arithmetic number, because the mean of its divisors is an integer number (20151705).

Almost surely, 2^563777982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 563777982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644854560).

563777982 is an abundant number, since it is smaller than the sum of its proper divisors (725931138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

563777982 is an equidigital number, since it uses as much as digits as its factorization.

563777982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197 (or 2179 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 54.

The square root of 563777982 is about 23744.0093918445. The cubic root of 563777982 is about 826.1064954628.

The spelling of 563777982 in words is "five hundred sixty-three million, seven hundred seventy-seven thousand, nine hundred eighty-two".