20566060 has 12 divisors (see below), whose sum is σ = 43188768. Its totient is φ = 8226416.

The previous prime is 20566057. The next prime is 20566069. The reversal of 20566060 is 6066502.

It is not an unprimeable number, because it can be changed into a prime (20566069) 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, 514132 + ... + 514171.

It is an arithmetic number, because the mean of its divisors is an integer number (3599064).

Almost surely, 2^20566060 is an apocalyptic number.

20566060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20566060 is an abundant number, since it is smaller than the sum of its proper divisors (22622708).

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

20566060 is a wasteful number, since it uses less digits than its factorization.

20566060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028312 (or 1028310 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20566060 is about 4534.9818081223. The cubic root of 20566060 is about 273.9788464675.

The spelling of 20566060 in words is "twenty million, five hundred sixty-six thousand, sixty".