5651564 has 12 divisors (see below), whose sum is σ = 9948624. Its totient is φ = 2809104.

The previous prime is 5651561. The next prime is 5651573. The reversal of 5651564 is 4651565.

5651564 = 837² + 838² + ... + 844².

It is a d-powerful number, because it can be written as 5³ + 6² + 5⁹ + 1 + 5⁹ + 6⁸ + 4⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 5651564.

It is not an unprimeable number, because it can be changed into a prime (5651561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3392 + ... + 4775.

It is an arithmetic number, because the mean of its divisors is an integer number (829052).

Almost surely, 2^5651564 is an apocalyptic number.

It is an amenable number.

5651564 is a deficient number, since it is larger than the sum of its proper divisors (4297060).

5651564 is a wasteful number, since it uses less digits than its factorization.

5651564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8344 (or 8342 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 5651564 is about 2377.3018319094. The cubic root of 5651564 is about 178.1241821651.

Subtracting from 5651564 its reverse (4651565), we obtain a palindrome (999999).

The spelling of 5651564 in words is "five million, six hundred fifty-one thousand, five hundred sixty-four".