20566054 has 8 divisors (see below), whose sum is σ = 30869208. Its totient is φ = 10276320.

The previous prime is 20566019. The next prime is 20566057. The reversal of 20566054 is 45066502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20566057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2574 + ... + 6910.

It is an arithmetic number, because the mean of its divisors is an integer number (3858651).

Almost surely, 2^20566054 is an apocalyptic number.

20566054 is a deficient number, since it is larger than the sum of its proper divisors (10303154).

20566054 is a wasteful number, since it uses less digits than its factorization.

20566054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6710.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 20566054 is about 4534.9811465981. The cubic root of 20566054 is about 273.9788198237.

The spelling of 20566054 in words is "twenty million, five hundred sixty-six thousand, fifty-four".