20020075 has 12 divisors (see below), whose sum is σ = 25018488. Its totient is φ = 15891200.

The previous prime is 20020027. The next prime is 20020093. The reversal of 20020075 is 57002002.

It is a happy number.

It is not a de Polignac number, because 20020075 - 2²³ = 11631467 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219 + ... + 6331.

It is an arithmetic number, because the mean of its divisors is an integer number (2084874).

Almost surely, 2^20020075 is an apocalyptic number.

20020075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20020075 is a deficient number, since it is larger than the sum of its proper divisors (4998413).

20020075 is a wasteful number, since it uses less digits than its factorization.

20020075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6254 (or 6249 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 20020075 is about 4474.3798452970. The cubic root of 20020075 is about 271.5325511790.

Adding to 20020075 its reverse (57002002), we get a palindrome (77022077).

The spelling of 20020075 in words is "twenty million, twenty thousand, seventy-five".