20005064 has 16 divisors (see below), whose sum is σ = 37932300. Its totient is φ = 9889792.

The previous prime is 20005021. The next prime is 20005087. The reversal of 20005064 is 46050002.

It can be written as a sum of positive squares in 2 ways, for example, as 14760964 + 5244100 = 3842^2 + 2290^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13337 + ... + 14760.

Almost surely, 2^20005064 is an apocalyptic number.

It is an amenable number.

20005064 is a deficient number, since it is larger than the sum of its proper divisors (17927236).

20005064 is a wasteful number, since it uses less digits than its factorization.

20005064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28192 (or 28188 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 20005064 is about 4472.7020915773. The cubic root of 20005064 is about 271.4646694109.

Adding to 20005064 its reverse (46050002), we get a palindrome (66055066).

The spelling of 20005064 in words is "twenty million, five thousand, sixty-four".