20063580 has 24 divisors (see below), whose sum is σ = 56178192. Its totient is φ = 5350272.

The previous prime is 20063579. The next prime is 20063581. The reversal of 20063580 is 8536002.

It is an interprime number because it is at equal distance from previous prime (20063579) and next prime (20063581).

It is a self number, because there is not a number n which added to its sum of digits gives 20063580.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20063581) 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 7 ways as a sum of consecutive naturals, for example, 167137 + ... + 167256.

It is an arithmetic number, because the mean of its divisors is an integer number (2340758).

Almost surely, 2^20063580 is an apocalyptic number.

20063580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20063580 is an abundant number, since it is smaller than the sum of its proper divisors (36114612).

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

20063580 is a wasteful number, since it uses less digits than its factorization.

20063580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334405 (or 334403 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 20063580 is about 4479.2387746134. The cubic root of 20063580 is about 271.7290951833.

Adding to 20063580 its reverse (8536002), we get a palindrome (28599582).

The spelling of 20063580 in words is "twenty million, sixty-three thousand, five hundred eighty".