5656545 has 24 divisors (see below), whose sum is σ = 9860136. Its totient is φ = 2999808.

The previous prime is 5656493. The next prime is 5656549. The reversal of 5656545 is 5456565.

It is a happy number.

5656545 is a `hidden beast` number, since 56 + 565 + 45 = 666.

5656545 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

5656545 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 4 ways, for example, as 278784 + 5377761 = 528^2 + 2319^2 .

It is not a de Polignac number, because 5656545 - 2⁶ = 5656481 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5656549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14979 + ... + 15351.

It is an arithmetic number, because the mean of its divisors is an integer number (410839).

Almost surely, 2^5656545 is an apocalyptic number.

It is an amenable number.

5656545 is a deficient number, since it is larger than the sum of its proper divisors (4203591).

5656545 is a wasteful number, since it uses less digits than its factorization.

5656545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721 (or 718 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 5656545 is about 2378.3492174195. The cubic root of 5656545 is about 178.1764966527.

The spelling of 5656545 in words is "five million, six hundred fifty-six thousand, five hundred forty-five".