56653209 has 16 divisors (see below), whose sum is σ = 87580800. Its totient is φ = 36126288.

The previous prime is 56653147. The next prime is 56653241. The reversal of 56653209 is 90235665.

56653209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56653209 - 2¹⁹ = 56128921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56653249) 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 15 ways as a sum of consecutive naturals, for example, 44994 + ... + 46235.

It is an arithmetic number, because the mean of its divisors is an integer number (5473800).

Almost surely, 2^56653209 is an apocalyptic number.

It is an amenable number.

56653209 is a deficient number, since it is larger than the sum of its proper divisors (30927591).

56653209 is a wasteful number, since it uses less digits than its factorization.

56653209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91261 (or 91255 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 56653209 is about 7526.8326007691. The cubic root of 56653209 is about 384.0680421419.

The spelling of 56653209 in words is "fifty-six million, six hundred fifty-three thousand, two hundred nine".