563645140 has 24 divisors (see below), whose sum is σ = 1187939592. Its totient is φ = 224641920.

The previous prime is 563645123. The next prime is 563645143. The reversal of 563645140 is 41546365.

It can be written as a sum of positive squares in 4 ways, for example, as 29203216 + 534441924 = 5404^2 + 23118^2 .

It is a junction number, because it is equal to n+sod(n) for n = 563645096 and 563645105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563645143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45331 + ... + 56410.

It is an arithmetic number, because the mean of its divisors is an integer number (49497483).

Almost surely, 2^563645140 is an apocalyptic number.

It is an amenable number.

563645140 is an abundant number, since it is smaller than the sum of its proper divisors (624294452).

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

563645140 is a wasteful number, since it uses less digits than its factorization.

563645140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102027 (or 102025 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 563645140 is about 23741.2118477554. The cubic root of 563645140 is about 826.0416056994.

It can be divided in two parts, 56364 and 5140, that added together give a square (61504 = 248²).

The spelling of 563645140 in words is "five hundred sixty-three million, six hundred forty-five thousand, one hundred forty".