20055037 has 4 divisors (see below), whose sum is σ = 20746620. Its totient is φ = 19363456.

The previous prime is 20055017. The next prime is 20055083. The reversal of 20055037 is 73055002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7338681 + 12716356 = 2709^2 + 3566^2 .

It is a cyclic number.

It is not a de Polignac number, because 20055037 - 2¹⁵ = 20022269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20054999 and 20055017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20055017) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 345748 + ... + 345805.

It is an arithmetic number, because the mean of its divisors is an integer number (5186655).

Almost surely, 2^20055037 is an apocalyptic number.

It is an amenable number.

20055037 is a deficient number, since it is larger than the sum of its proper divisors (691583).

20055037 is an equidigital number, since it uses as much as digits as its factorization.

20055037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691582.

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 20055037 is about 4478.2850512222. The cubic root of 20055037 is about 271.6905226185.

The spelling of 20055037 in words is "twenty million, fifty-five thousand, thirty-seven".