20553064 has 16 divisors (see below), whose sum is σ = 44042400. Its totient is φ = 8808432.

The previous prime is 20553059. The next prime is 20553067. The reversal of 20553064 is 46035502.

It is not an unprimeable number, because it can be changed into a prime (20553067) 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 3 ways as a sum of consecutive naturals, for example, 183454 + ... + 183565.

It is an arithmetic number, because the mean of its divisors is an integer number (2752650).

Almost surely, 2^20553064 is an apocalyptic number.

It is an amenable number.

20553064 is an abundant number, since it is smaller than the sum of its proper divisors (23489336).

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

20553064 is a wasteful number, since it uses less digits than its factorization.

20553064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367032 (or 367028 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 20553064 is about 4533.5487203735. The cubic root of 20553064 is about 273.9211238677.

Adding to 20553064 its reverse (46035502), we get a palindrome (66588566).

The spelling of 20553064 in words is "twenty million, five hundred fifty-three thousand, sixty-four".