20025020 has 24 divisors (see below), whose sum is σ = 42184800. Its totient is φ = 7984832.

The previous prime is 20025001. The next prime is 20025037. The reversal of 20025020 is 2052002.

It is a junction number, because it is equal to n+sod(n) for n = 20024992 and 20025010.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5786 + ... + 8574.

It is an arithmetic number, because the mean of its divisors is an integer number (1757700).

Almost surely, 2^20025020 is an apocalyptic number.

20025020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20025020 is an abundant number, since it is smaller than the sum of its proper divisors (22159780).

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

20025020 is a wasteful number, since it uses less digits than its factorization.

20025020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157 (or 3155 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 20025020 is about 4474.9324017241. The cubic root of 20025020 is about 271.5549057061.

Adding to 20025020 its reverse (2052002), we get a palindrome (22077022).

The spelling of 20025020 in words is "twenty million, twenty-five thousand, twenty".